${}_{86}{}^{222}\mathrm{Rn}$ is an isotope of the noble gas radon.

How many protons, neutrons and electrons are present in one atom of the element?

Q. An isotope of helium is represented by the symbol ${}_2^{3}He$. How many protons, neutrons and electrons are there in an atom of the isotope?

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. An atom of phosphorus has the symbol ${}_{15}^{31}\text{P}$. How many protons, electrons and neutrons are present in an atom of phosphorus?

Q. An atom of an element contains $17$ protons, $18$ neutrons and $17$ electrons. Which of the following will be the atomic structure of another isotope of this element?

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