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damaskus [11]
3 years ago
9

PLEASE EXPLAIN!! 14 POINTS!!!!!!!

Biology
1 answer:
MissTica3 years ago
4 0
The atomic number is the total amount of protons which are positively charged and the atomic mass is the total number of protons and neutrons (neutron are neutral, they have no charge). Protons and neutrons are in the middle of the element while electrons (negatively charged) are on the outside. The electrons on the outer most shell of the element are called valence electrons. The group number an element has will tell you how many valence electrons they have,but it's tricking because group 16 really has 6 ( so be careful with that). I hoped that helped a little!
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