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

What is the atomic number of Helium?

Number of p electrons in bromine atom are:

The number of electrons in K, L and M-shell of an atom are 2.8 and 5 respectively. Calculate (i) the number of protons, (ii) Number of electrons in the s-and p-sub-shell and (iii) the valency of the element.

A radioactive nucleus X decays as follows : A overset(beta^+)to A_1 oversetalpha to A_2 If the mass number and atomic number of A_2 are 176 and 71 respectively, what are the mass numbers and the atomic numbers of A_1 and A? Which of these three elements are isobars?

What is atomic number?

What is atomic number?

Number of total electrons in n-th orbit of an an atom is-

(i) What are the quantum number by which an electron in an atom can be designated? (ii) What is the maximum number of quantum numbers that may be the same for two electrons ofo an atom?

Number of total electrons in the n-th orbit of an atom is-