3. chemical bonds are likely to form when
a an atom's nucleus has the same number of protons as it does
neutrons
b an atom's outer energy level doesn't have the maximum number of
electrons
c two atoms have the same number of electrons
dan atom's outer energy level is filled to capacity

B.an atom's outer energy level doesnt have maximum number of electrons

Explanation:

Because an atom always need to have a full octet so that it can stabilise...So an atom tends to...share...donate...or gain electrons...in which this is done by forming bondsso that it can attain a stable octet

3.4 x10^3 best answer to the question