Question

Dude

Answer 1

@dude

Answer 2

K\(^{+}\).

Answer 3

Potassium

Answer 4

How many valence electrons are there in an atom of oxygen? Be? K?

Answer 5

Okay use a periodic table of elements

Look at the number in the top
If the number of positive, then it has that amount of valence electrons

If the number is negative, then subtract it from 8

Ex. Oxygen has -2 on the top, so subtract 8-2 [It has 6]

Or you can look at the group it is in `1A, 2A, 3A, 4A, 5A, 6A, 7A, 8A` (Only the A's)