Question

Electrons move about the nucleus of an atom in regions called _____.

Answer 1

primary energy levels also knows are as electron shells or orbitals :) either one works

Answer 2

A very strong base might have a pH of _____.
3 , 5 , 9 , or 13 ?

Answer 3

13

Answer 4

the lower the pH the more acidic it is... the higher the pH the more basic is it :)

Answer 5

orbitals