Question

need help!!
Potassium has an atomic number of 19. Assuming there is nothing irregular with an atom, how many shells are required for all of the electrons?

Answer 1

a) 1 b) 4 c) 2 d) 3

Answer 2

@Kash_TheSmartGuy

Answer 3

B. Can I get a medal?

Answer 4

are you sure

Answer 5

its b

Answer 6

yes

Answer 7

ok thnx

Answer 8

but can you plz explain why is it 4

Answer 9

what happen know

Answer 10

It's four because the first she'll accepts 2 electrons, the second and third accept 8 electrons since potsassium is within the first twenty elements (after that the rule sort of changes) so there is one electron left so it goes into the fourth shell