So i got a question on a test saying put down the number of valence eletrons of this element, and i put 3. But she marked it wrong becuase she said you have to look at the configuration. And that the answer was 2. But the question did not ask "how many electrons are on the outer shell" and instead said "how many valence electrons are there". Would the answer for be 2 or 3?
@science_exam13 күн бұрын
Looking at 2, 8, 9, 2 there are 2 valence electrons. Remember when they say valence electrons, always account for the elections on the valence shell (last shell).
@JeenlyFlores14 күн бұрын
thank you so much, I've been looking for an easy explanation and it's so helpful for my reporting!
@science_exam14 күн бұрын
You are welcome.
@mustafathechimny15 күн бұрын
At the start bro really said 🤨🤨🤨
@science_exam14 күн бұрын
😉
@khai-tamnguyen16916 күн бұрын
Thanks so much. I had chemistry homework on this but we hadn't even learnt about it in class yet. I had to search online for the answers and came across this video, which was straightforward and did the job. 👍
@science_exam16 күн бұрын
Happy it was helpful
@SIRIRATHANASOMVANDY25 күн бұрын
1m³: 10000000cm³
@SIRIRATHANASOMVANDY25 күн бұрын
How..
@science_exam24 күн бұрын
See conversion
@justjeremiah25 күн бұрын
Hey sir! I’m just stopping by to thank you for your amazing resources during exam season I was able to get a one in biology with ur help. God bless 🎉
@science_exam25 күн бұрын
Awesome, I am happy to hear. Congratulations 🎊
@VictoriaTaylor-y9s26 күн бұрын
Conrad Park
@jimbolad00728 күн бұрын
bombaclut
@science_exam27 күн бұрын
✌️
@HanLusty-f2v28 күн бұрын
Towne Landing
@Vayavel232428 күн бұрын
Why must there be a reaction force up the pivot, and not opposite of where the weight of the plank is?
@science_exam27 күн бұрын
Consider upwards and downwards forces.
@JackelineDuhn-b4r28 күн бұрын
Taylor Station
@alexgoodman676228 күн бұрын
591 Tromp Trail
@JohnMaria-y6vАй бұрын
030 Zulauf Pike
@science_examАй бұрын
🙏
@keishajones5164Ай бұрын
Thank you
@science_examАй бұрын
You are welcome.
@ainacaleja6607Ай бұрын
0:00 What was that If you are a Gen Z you know what im talkin about 🤔🤫🤨☠️☠️☠️☠️☠️☠️☠️☠️
@ridanasir5529Ай бұрын
Its good
@science_examАй бұрын
Thank you
@CharlangelaWilliamsАй бұрын
I will be taking this exam next year I pray to God that I will past in Jesus name 🙏🙏 for me guys.
@science_examАй бұрын
You will do well.
@FaqeerKhalilАй бұрын
Thank you Mr ❤
@science_examАй бұрын
You are welcome
@1donminiАй бұрын
Ughh I am doing chemistry in 2025 and I don’t understand anything I am struggling I am gonna have to go to extra classes. I hope I pass
@science_examАй бұрын
You will
@1donminiАй бұрын
Ughh I am doing chemistry in 2025 and I don’t understand anything I am struggling I am gonna have to go to extra classes. I hope I pass
@science_examАй бұрын
You will
@1donminiАй бұрын
I am doing cxc for 2025. And I am scared my teacher is gone overseas and the new teacher that we got doesn’t have any experience and I don’t understand when she teaches😢
@science_examАй бұрын
Do your best preparing and it will happen.
@patriciadell3659Ай бұрын
@mr knight do you do Social Studies?
@science_examАй бұрын
Sorry, I do not.
@PrinceMalvinMakwarimimbaАй бұрын
Good job sir
@science_examАй бұрын
Thank you.
@MarsAintHere._.12Ай бұрын
My science teacher put this on for us today <3 Nice work!
@science_examАй бұрын
Awesome, thank you for watching.
@gladyssegovia7990Ай бұрын
Awesome, I love the video. Next time, no music. I had a hard time listening to you.
@science_examАй бұрын
Thank you, sorry about that. There is a link for a version without music in the description.
@LailahbirabwaАй бұрын
Why a nice video has music only 😭.
@science_examАй бұрын
Sorry
@mariehanslerАй бұрын
That music killed me bruh😂
@science_examАй бұрын
😆
@VihaanTilvaАй бұрын
Thanks sir for helping me🙏🏼
@science_examАй бұрын
YOU ARE WELCOME.
@AnitaKarmakar-n2lАй бұрын
Mg
@kingstargaming3357Ай бұрын
Lasy🎉
@kaundriadnekaАй бұрын
Hello Mr Knight will you be doing any zoom classes? Or only on youtube?
@science_examАй бұрын
Mainly on, but I will see.
@aandi8738Ай бұрын
I'm entering 10th grade and I'm planning to finish this, do some work and a few papers before I start the 4th form year! I may not be too close to doing the exams but I'm excited and I really want to get ahead! I'm doing CXC next year, Mathematics and English, Thank you Mr. Knight!
@science_examАй бұрын
Awesome and best of luck. Keep tuning in.
@science_examАй бұрын
Awesome and best of luck. Keep tuning in.
@treshaharrichand-narine43082 ай бұрын
Thank you for this video sir. As a biology teacher your video was recommended to my students.😊 🙏
@science_exam2 ай бұрын
You are welcome. I am happy to hear.
@science_exam2 ай бұрын
You are welcome. I am happy to hear.
@aesoriair16642 ай бұрын
Good Morning Mr. Knight I would like to thank you for your aid in me and my twin brother in obtaining a 1 in Physics and Biology. Thank you for providing simple and easy to understand videos on extensive topics that proved to be arduous. May God bless you and your family 🙏.
@science_exam2 ай бұрын
You are most welcome and congrats on your achievement. I am happy to hear such news.
@hienarizze2 ай бұрын
Hello, do you have the link for these past papers?
@science_exam2 ай бұрын
I only have the papers, no link.
@adomemmanuel82072 ай бұрын
Thank you
@science_exam2 ай бұрын
You are welcome
@anuraggupta36852 ай бұрын
Beautiful explanation sir
@science_exam2 ай бұрын
Thank you.
@antuoanetnunez44782 ай бұрын
Would be Better with out the music
@science_exam2 ай бұрын
There is a no music version, please see link in the comment or description.
@maasulagam77912 ай бұрын
Nice information sir 👍
@science_exam2 ай бұрын
Thank you
@sheela0892 ай бұрын
Why 3 d 6 can be written before 4 s 2 . What is the reason?
@science_exam2 ай бұрын
3 and 4 represent the shells. The 3rd shell is theoretically filled before the 4th.
@nvm_dee042 ай бұрын
@@science_exam so whenever we write the configuration we should right in the spdf order? ex: 3s2 3p6 3d10 3f14 ....