The periodic table | Atoms, elements, and the periodic table | High school chemistry | Khan Academy

[@margaridavelhinho1478]

TIMESTAMPS Groups 0:09 - 1:31 Periods 1:32 - 2:14 Alkali Metals 2:15 - 3:25 Alkaline Earth Metals 3:26 - 4:01 Properties of Metals in General 4:02 - 4:50 Properties/Contrast with Nonmetals 4:51 - 5:11 Halogens 5:12 - 5:52 Noble Gases 5:53 - 6:17 Not really specific, lil summary 6:18 - 6:42 Metalloids (The Zigzag Line) 6:43 - 8:38 Outro 3:39 - 8:55

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Thanks

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Thanks

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bro you’re a god darn Saint. Thank you for taking the time to do this.

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Thanks

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I learned a lot in a few minutes . your method is better than the chemistry teacher.

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Hlw

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@@dharmaraosorde1701 Amen!!! I'm also off tress... 2nd thought. Technically, he is now a chemistry teacher...🤷🏽‍♀️

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Facts

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i completely agree

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True fact bro 😊

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Trying to figure out why people would ever dislike these? Or are they just protesting against school?😂😂😂

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its bots and other organizations who make vids like this

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people can be bad minded

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Understanding & Common Sense is sadly not so common nowadays. Instead its replaced with fear & ignorance on average.

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Some people just find these super confusing

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who's here from school

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@@mcm7119 facts tho lol

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me

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@@mcm7119 me. Im actually only in 4th grade, but i love science

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This is helping me a lot in our online chemistry class. You're awesome!

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This has been a life saver for me!!! Thx u sm 2020 kids where u at?

[@dharmaraosorde1701]

Hi

[@johnn2638]

Same here.

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thank you !! this helped me a lot for studying for my first chem test !

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Truw

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Pay no mind to the hate comments. You're an excellent mentor. Keep the vids coming :-)

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True

[@chemistryandscience5976]

There are four blocks namely S, P, D and F in the Modern Periodic table. Element are classified into four Blocks on the basis of valence shell electronic configuration. Those elements which have their outer most sub shell is S, constitute to form S block. Similarly p, d and f blocks are formed on the basis of outermost valence subshells p, d and f.

[@rafiqdawoodpoto6924]

Yeah this is also one of the basis on which periodic table is classified

[@yaliwebenjamin6472]

Thank you so much! This video is awesome and straight forward.

[@abby7221]

thank god I watched this video because all of my knowledge about elements argon .

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That was hot

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what does that mean???

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@@theUnmeshraj argon, are gone- its a pun I think

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[@chloebutler8438]

I was gonna make a sodium joke, but Na. Ok I have a different one: 2 scientists walk into a bar. One says, "I want H20." The other says, "I want H20 too". The second one dies. Ok, here's a potassium joke. What, you don't want to hear it? K. Periodic table puns are funny, AmIrITe?

[@iliyantharwani6951]

I didn't get it.

[@1010-f1k]

He asked for “H20 too”. It sounds like H2O2 which is hydrogen peroxide and I think can kill you

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ha...get it now

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lolol this comment is so perfect

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It's funny

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Taylor Kotch ‘’f

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meee- he sounds so young lmaooo

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@@_buany8701 I don’t think that’s Sal, if you watch some of his videos back in 2010 or something, he still sounds the same.

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It's an oldie but a goodie thank you khan academy

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For sure I have got 80/80 in my Chem exam today bcoz of this video you're better than my Chem teacher

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Kk wlcm

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Sure okay

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this video was perfectly informative

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I am now learning and memorizing something I will forget after a few couple of days :)

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Hi

[@eddiehenriquez3990]

Fir real!! I don't see why we would ever need this after we graduate or anywhere out of school. These stuff are useless to learn.

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@@eddiehenriquez3990pretty useful when you're a chemist

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​@@eddiehenriquez3990 it's useful you fool. Plus it's basic knowlege which your should be aware of.

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Excellent Saw this as the first video and subscribed.

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i never missed any topic of my syllabus becoz of this

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Thanks sir...u explain waaayyy beter than my chemistry teacher❤❤

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Oh my god you are a life saver!

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I’ve learned more from this video than I have all year in chem

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thanku só much ... GOD bless u

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Who has chemistry exam tomorrow?

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I do

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Me

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Me

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me 😭😭😭😭

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I’m not here for school .. just trying to see if this will get me some sleep

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Tf bro? 😭 u should be so chill I'm having chem test tomorrow

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@@NikithaPS-gt7dj lol 😂

[@MalluStyleMultiMedia]

@@NikithaPS-gt7dj good luck 👍 what part of the world are you from ?

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@@MalluStyleMultiMedia India, tamilnadu

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@@NikithaPS-gt7dj oh ok cool 👍 I’m originally from Kerala. Lots of Tamil Nadu connections 😂

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Thanks for helping me Ace gen chem. Also, your videos on some calculus subjects were incredibly helpful. Khan is the OG.

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Большое спасибо, очень интересные видео!

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Да да да! :)

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Да, это правда!

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Yes, im in 6th grade and we are learrning this. Very helpful!

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oh are u now big fella?

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12?

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I r in Secund grade rite now al aslo

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CAT Club Nice. I'm in 7th

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So how's 7th grade?

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Thank you so much this info will help on my science test

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I'm always whacking all your periodic table videos I love them

[@albertchiu655]

concise !

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This video was so helpful for me. Great explanation!

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I'm 11 years old and in the future I want to be a cardiologist and this video is helping me a lot

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Me 2 , good luck bro :)

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Hoyooo kid.. happy to see u looking forward for ur dreams at this age ..i hope u get all the blessings u deserve...keep working hard lil kiddo...u will surelyy achieve..may the lord bless uh !! enjoy ur childhood too kid ❤😢

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Oh shit did I just sound too boomerish?? Lol🗿🎀

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@@NikithaPS-gt7dj nah u good lol , ty for the great comment :)

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this helped me a lot, thank youu!

[@rajveerbhardwaj8470]

I’m about to start this unit , next class in PRE -AP Chemistry 1 which is on Thursday we finished our unit about Isotopes , Average Atomic Mass as well as writing the isotopes in hyphen and nuclear notation

[@pamelawarren5405]

Are their any unclassified/secret, non recognized or not published elements in the periodic table ?

[@rogercraven592]

Very helpful for Revision for my daughter's test

[@arcticpossi_schw1siantuntija42]

Thanks for making me understand elements better.

[@ryzaseguilla123]

Learned Alot with this explanation more than my teacher's explanation about the topic

[@Nagaprasadnarala.]

Thanks for sending this message

[@ruthpalad3802]

1. Locate the metals, non-metals and noble gases in the Periodic Table of Elements. Color the area with metallic elements blue; the non-metallic elements yellow and the noble gases green.

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Great video

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Love it , give us more and more knowledge

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Where are my 2020 online students at?

[@XZeroOneArmour]

nice explanation

[@dalgom4805]

Thank you so much 😁

[@caspernelson8282]

In my chemistry lecture, we actually discussed how hydrogen is indeed a metal. There is a reason it is placed where it is on the periodic table. :)

[@mann_mishra05]

Can u explain?

[@PrajinPhysics]

Thankyou. It helped me make a concept about periodic table.

[@chellodise]

Very clear and concise.

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I have a midterm today thanks

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Mrs. brewingtons class where u at

[@kisho2679]

what are sets "noble metals", "solenoids", "semimetals", "rare earths", ...?

[@SoFallsWichitaFalls]

I got lot out of this. Thank you.

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I remember dumbass 3rd grade me was trying to learn this to be cool

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helpful

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ohhhhh

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Helpful

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great video really understood everything

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Very well done

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Good man

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wow this is cooooooooooooooool

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No

[@NoNo-yg8yk]

Im a little bit confused of groups and family in periodic table . Are they d' same? Why other element in this video doesn't have family? Like the group 3-12.

[@AlexisGarcia-zj4wi]

thanks for the video it was really good I used it for my homework

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thank u for this.. very helpful

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np bby

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🔥🔥🔥👍👍👍

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I need this I start 8th grade casp test tomorrow which cover 6th through 8th and we can say 7th sucked last year

[@Millenial777]

what about the bottom part of the periodic table the elongated one you missed that section.

[@huggers105]

if you watched the video you'd know that he said he didn't have enough room to cover it.

[@lillylewis6607]

lol

[@alokprasanth2515]

Im learning

[@herefortravisscottburger4710]

I think the line that separates the metals and nonmetals should start on top of boron then we zig zag (I'm not sure tho)

[@xicle5041]

when ur in 7th trying to learn more about the periodic table and memorize them all 👏😫😩 well i learned numbers 1-58 😃

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Facts

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Who's her for self education 🙂

[@XxSP1K3xX]

Ty for helping me

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How does it work?

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I want some more brief explanation

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like this coment

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Why? I just did.

[@ospina79]

Vertical columns and horizontal rows...ok. I learned somthing

[@shreyanshtalks9276]

Thx a lot

[@randomviewer1285]

can someone tell me about mendeleev and how he ordered the periodic table.

[@headhomegamer6024]

Lemon Bleach search " periodic table explained" and check out the video made by Crash Course. That'll help you

[@randomviewer1285]

HeadHome Gamer - Its all good i done the exam on that all ready.😊

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He ordered in amazon

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He's the culprit who responsible for this mess

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Nice joke vanapalla Chaitanya

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2021 Guys anyone

[@ankitkostha4003]

Pls sir propose this video in hindi🙏🙏

[@plastictori3259]

My chem teacher got mad at us so he just didn’t teach us this

[@Krish103]

it can be called 8A or O

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How come in periodic table acuret ser

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Wow.. #superchem with sonali mam

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Good

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Who's still here in 2021?!

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5:13

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I would tell you an electron joke but it would just be negative

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@Michael Jordan 😂😂lol

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lol

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Na-sodium, Li-Lithium

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So helpful

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this is yes

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Who is here from school’s link?

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Thxs love you post more 😁😁

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❤❤❤

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no love for radioactive elements?

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NO

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Magnesium

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Magnet

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Mg

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You saved my life

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Watched

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I'm in 7th

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Ana Mika saem