tha atom structure | Ms. Shorouk Shaaban

................. is the number of electrons or protons.

............. is the summation of the number of electrons and neutrons.

for the atom that has electronic configuration ,(2, 8, 9 2), the atomic number is ..............

for the electronic configuration , (2, 8,3), the atomic number is ...........

• 2

• 13

• 8

• 3

the electronic configuration of ( ₂₂Ti ) is .........

• 2, 8,8,2

• 2, 8, 10, 2

• 2, 8, 12

• no answer is correct