Question

Calculate the number of electrons protons and neutrons present in 81g of al^3+

Answer 1

Firstly we write the Atomic Number of Aluminum atom ,that is 13

so

Number of Proton =13

Number of Electron =13

Number of Neutron =14

Then

According to question 3 electrons are remove so ,

Number of Proton=13

Number of Electron =13-3=10

Number of Neutron=14