Question

Gallium, Ga, is a low-melting metal that is used in semiconductors. It is atomic number 31. The

noble-gas notation for an atom of gallium in the ground state is shown below.
[Ar]4s23d104p1
What is the complete electron configuration for this atom?

Answer 1

answer no.1

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p¹

Step-by-step explanation:

if you are not sure..between 1st and 2nd just sum all the "exponents" and you should get the atomic number.. in this case 31.