Question

What ion does an Oxygen atom form? Why? Draw in the electrons for the deionized and ionized Oxygen atom. Find the Nuclide symbol for both.

I have the answers: Deionized has 6 valence electrons and ionized has 2 valence electrons, nuclide symbol differs by 2 electrons.

Can someone explain why? And draw out the little bohr models for both examples? Thanks!

Answer 1

example of the blank bohr models

Answer 2

wrong. neutral atom has 6 valence electrons. to become an ion and get a stable electronic configuration, oxygen atom takes in 2 electrons to become and 02- ion. It has 6 + 2 = 8 valence electrons now

Answer 3

That's the answer our teacher gave her four classes of 600 students each, should I tell her that she's wrong?

Answer 4

well. if she said (as what you typed) that an oxygen ion has 2 valance electrons, she is definitely wrong

Answer 5

maybe she meant valence electron shells?

Answer 6

as a general guideline, hydrogen and helium (period 1 elements) needs 2 valance electrons to be stable. then, up to period 3, they need 8 valence electrons to be stable

Answer 7

after period 3, it gets quite complicated since Bohr's model is wrong/innacurate

Answer 8

i'll just show you how to draw the models

Answer 9

ok, thanks! haha I'll ask her about it tomorrow