Atomic Number, Atomic Mass, and the Atomic Structure | How to Pass Chemistry

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2 years later...

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You're very welcome Cara!

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[@melissamaribel]

Thank you!

[@0797cjm]

Hey Melissa. I learned this in class the other day. I wanted to ask you a quick question. My teacher taught me that the atomic number is protons and electrons while the bottom number is protons and neutrons. Am I missing something and is is possible that I misheard this? Or misunderstood? Hopefully you can explain this to me. Thanks in advance!

[@pulkithanda833]

@@0797cjm Atomic no is only equal to no protons but if you see in a neutral atom the protons and electrons are equal so only in a neutral atom the atomic no is equal to no of protons and electrons. And the bottom no itself is atomic number. So your teacher told this for neutral atom only.

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[@xLOVExGODx]

I've researched the information provided to us at 6:12 and the number of electrons is actually 8. Also, by following your example whenever using the periodic table. Unless I'm missing something but the charge according to a notable website has indicated that is ( -1 ), which would give us the equation of 9 - ( -1) = 8 for the total of electrons.

[@melissamaribel]

When Fluorine is in its ion form meaning it shows a F- then yes this is true but that isn’t the question. This question is showing F in its neutral state this is why the number of protons and electrons would be the same since there is no charge shown.

[@xLOVExGODx]

Melissa Maribel awesome! I greatly appreciate that you took the time to explain that to me because I was following the steps provided and didn’t have the same answer. 🙂 Now, would you please explain the number of electrons for Oxygen and how you came to that conclusion? I’m having difficulty with that particular question at the moment. I’m simply doing this as practice on my own based on the set of rules that you’ve provided.

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You are so welcome! Thank you for the support 💕

[@aishani1591]

hi there can you help me with the F one...I got the electron as 11 instead of 9....what's the charge?

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[@kyladuffy7137]

thank you for your video! It has been very helpful. I do have 1 question, at the end, in the practice examples, how do you find the number of electrons in F without being given the atomic charge?

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Thanks a lot Mellisa

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Melissa Maribel 😊😊😊

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Thanks

[@cess5614]

for 5:18 I got 10 for electron because the charge for "F" on my periodic table is -1. So I did ELECTRON = PROTON which is 9 - (-1) = 10 pls check if I'm wrong

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i got 87 in chem 😊😊😊

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0:26 That is gold!

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This teacher is lovely

[@evelynfrank7467]

This is great, but am having difficulty finding the neutron, I don't seem to understand that part, I realized it during the practice question, I wasn't able to find the neutron as others

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[@kekedorsainvil5061]

How do we know if an element is neutral before finding the protons, neutrons, and electrons? In finding these for iron for example, I automatically subtracted protons from the charge but since it is neutral, the protons and electrons are equal.

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Hi Ms. Melissa! I recently found your videos, about a month ago, and am reorganizing my Chemistry folder with a better understanding of Chemistry. I was wondering if you might know of anyone who explains things similarily to you (with enthusiasm) but discusses physics? Any help is greatly appreciated. If not, then it's ok. Thank you

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Hey Melissa I love your videos and they really help me understand chemistry! Is it possible to do a video on Electron configuration, sub levels and orbitals ?

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Hi! I got the answer to the first practice question, but I don't understand how to find the neutrons for the second practice problem.

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For the last practice/example, how do you solve or find out the exact number of the ion charge? I was a little confused lol

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