Number of electrons and neutrons in an atom are 6 and 8 respectively. What is the mass number of the atom?

Q. Define mass number. What is the mass number of an atom having 6 electrons and 7 neutrons?

Q. What is the atomic number of an element with 6 electrons and 8 neutrons?

Q. The atomic number and the mass number of an element M are 25 and 52 respectively.
The number of electrons, protons and neutrons in $M^{2+}$ ion respectively are:

Q.

The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. What are its atomic number and mass number ?

Q. An atom has mass number $23$ and atomic number $11$. How many protons, electrons and neutrons are present in the atom?