Question

Nucleus of an atom whose atomic mass is 24 consists of(a) 11 electrons, 11 protons and 13 neutrons(b) 11 electrons, 13 protons and 11 neutrons(c) 11 protons and 13 neutrons(d) 11 protons and 13 electrons

Answer 1

no of electrons=no of protons=11,

no of neutrons=13,

atomic no=11,

atomic mass=no of electrons+no of protons

atomic mass=24

the atom is of sodium(Na)