Saturday, January 21, 2012

How do you find the number of shells or rings of an atom?

Simplest way you can explain it please. I am in 8th grade and I have to explain this. :) Thank you.

How do you find the number of shells or rings of an atom?
Hi. Look at the periodic table. Remember that 'shells' (actually probability clouds) can normally contain only a certain number of electron and that they want to be 'full'. You do not include isotopes I assume. http://www.webelements.com/ The number above the element is the number of protons in that element and therefore the number of electrons. That is why hydrogen (with a number of 1) rarely exists. It is almost always H2 because the innermost 'shell' need two electrons to be full. And why helium (2) is so very stable. It already has two electrons. Make sense?
Reply:omg im like doing the same thing in my class..weird..



well we just start off by making 3 rings and look at the electrons on the side. they are ordered so the 1st one would go on the first ring and so on...





hope that helped or made any sense at all..

barber

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