Question

What is the number of electrons in an Al+3 ion? 1) 10 2) 13 3) 3 4) 16

Answer 1

1) 10

Step-by-step explanation:

atomic number of Al = 13

Al⁺³ meaning Al has lost 3 electrons

the number of electrons of Al⁺³ = 13 - 3

= 10 electrones