Structure of At...

The fundamental particles which arc responsible for keeping nucleons together is

The positron is as heavy as

Atoms may be regarded as comprising of protons, electrons and neutrons. If the mass attributed to the neutrons were halved and that attributed to electrons were doubled then atomic mass of would

How many electrons in an atom with atomic number 105 can have (n + l) = 8 ?

The size of the nucleus is approximately

The line spectrum ot two elements is not identical because

Bohr’s atomic model can explain the spectrum of

The electronic configuration of a dipositive ion M⁺² is 2, 8, 14 and its mass number is 56. The number of neutrons present is

An atom has 2 K, 8 L, 11 M, 2 N electrons, the total number of s – electrons will be

In an atom with 2K, 8L, 11M and 2N electrons the number of electrons with m = 0 ; s = + 1⁄2 are