Give the no of neutrons in C 12, C13 isotopes pf the elements?

Find the number of neutron and number of prorton if the element have number of electron 13 and mass number 27.

The mass number of an element is 23 and it contains 11 electrons. What is the number of protons and neutrons in it ? What is the atomic number of the element ?

The mass number of an element is 18. It contains 7 electrons. What is the number of protons and neutrons in it ? What is the atomic number of the element ?

Calculate the number of neutrons in the following elements : "_1^3H

Calculate the number of neutrons in the following elements : "_17^37Cl

Calculate the number of neutrons in the following elements : "_18^40Ar