Question

An isotope a has 18 neutrons and a mass number of -34. write its electron configuration

Answer 1

Answer:

Mass number = 34

Number of neutrons = 18

Number of protons = 34 - 18 = 16

Protons = Electons = Atomic Number

Thus, Electronic Configuration = 2,8,6

Note:-

• The maximum number of electrons in K - shell will be 2 electrons.

• While in the others there will be maximum 8 electrons.

• The Electronic Configuration depends on the number of protons not neutrons!