Question

Atomic number of aluminium is 13 and mass number is 27. Calculate number of protons, neutron,electron and represent the ion as well as also find out its valency.​

Plzz tell me fast!!!!

Answer 1

• Number of electrons =number of protons =13

• Number of neutrons =mass number - atomic

• number =27-13=14

Answer 2

Answer:

Number of electrons =number of protons =13

Number of neutrons =mass number - atomic

number =27-13=14