R R Misra Solutions for Chapter: Structure of Atom, Exercise 1: Problems for Proficiency

What is the net charge of an atom?

The atomic number of aluminium is 13. What is the number of protons and electrons in Al?

The atomic number of an element is 16. If its mass number is 34, find the number of neutrons.

Write the number of protons, neutrons and electrons in ${}_{12}{}^{24}\mathrm{Mg}$.

Write the number of protons, neutrons and electrons in ${}_{13}{}^{27}\mathrm{Al}$.

Write the number of protons, neutrons and electrons in ${}_{18}{}^{40}\mathrm{Ar}$.

Write the number of protons, neutrons and electrons in ${}_{15}{}^{31}\mathrm{P}$.

A neutral atom contains 8 electrons. If its mass number is 18, what are the numbers of neutrons and protons in this atom?