An element has 12 electrons and its mass number is 24.Calculate the number of protons,neutrons and nucleons in it.

Q. An atom of an element contains $13$ electrons. Its nucleus has $14$ neutrons. Find out its atomic number and approximate atomic mass. An isotope has atomic mass $2$ units higher. What will be the number of protons, neutrons and electrons in the isotope?

Q. A dipositive ion has an electronic arrangement $2,8,8$. Find out the number of electrons, protons, and neutrons in that element if its mass number is 40.

Q. The atom of an element has $10$ electrons, $10$ protons and $12$ neutrons. Find the mass number of the element:

Q. If mass of one atom is $3.32\times {10}^{-23}g$, then calculate number of nucleons (neutrons and protons) present in $2$ atoms of the element.