According to the periodic table, how many electrons does gallium (#31) have in its valence level? 3 13 31 2

Option A: 3

The atomic number of gallium atom is 31. It belongs to 13th group and 4th period of the periodic table.

The electronic configuration is as follows:

Here, Ar is the nearest noble gas.

The outermost electronic shells are

From the electronic configuration, valence electrons of  gallium are 3.

catya that's not even a b or c