Question

An atom neon has atomic number 10 and 3 isotopic mass numbers 21,22 and 23 determine the neutron numbers of

Answer 1

Answer:

Explanation:atomic number :

atomic number = 10

mass number of first isotope = 21

mass number of second isotope = 22

mass number of third isotope = 23

mass number = number of electrons + number of neutrons

atomic number = number of electrons

∴number of electrons = 10

number of neutrons =mass number - number of electrons

number of neutrons in first isotope = 21 -10 = 11

number of neutrons in second isotope = 22-10 = 12

number of neutrons in third isotope = 23 - 10 = 13