An atom of an element contains 2. 8 and 5 electrons in K, L and M shell respectively. Find out :- total number of electrons in 'S’and ‘P’-orbitals,

An atom of an element contains 2. 8 and 5 electrons in K, L and M shell respectively. Find out :- valency of the element.

A neutral atom has 2k, 8L, 8M and 2N electrons. Find out the total number of s-electron.

Give the electronic configuration of an element whose K,L and M shells contain 2,8 and 12 electrons respectively find also the number of unpaired electrons.

An atom of an element contains 2 electrons in the first shell (n=1), 8 electrons in the second shell (n=2) and 5 electrons in the third shell (n=3). There are 16 neutrons in the nucleus of the atom. From these data, find (1) the atomic no. of the element, (2) the no. of s and p-electrons int he atom, (3) mass no. of the element.

An atom of an element has 19 electrons. What is the total number of p-orbital?

An atom of an element contains 29 electrons and 35 neutrons. Deduce (1) the number of protons and (2) the electroniic configuration of the element.

A neutral atom contains 2K, 8L, 9M and 2N electrons. Writing its electronic configuration. Calculate total number of S electrons present in the atoms.

A neutral atom contains 2K, 8L, 9M and 2N electrons. Writing its electronic configuration. Calculate total number of d-electrons present in the atoms.