Nitrogen atom and nitride ion have same number of nucleons but different number of electrons.
Question 07
Two atoms are said to be isobars if ?
(a) They have same atomic number but different mass number
(b) They have same number of electrons but different number of neutrons
(c) They have same number of neutrons but different number of electrons
(d) Sum of the number of protons and neutrons is same but the number of protons is different
Name or state the following :
(a) An element having valency zero.
(b) Metal with valency one.
(c) Atoms of the same element differing in mass numbers.
(d) Elements having same mass number but different atomic number.
(e) Bond formed by transfer of electron(s).
(f) Ion formed by gain of electron(s).
Two atoms having the same number of electrons and also protons but different numbers of nucleons are called
____ are atoms of different elements which have the same number of nucleons but different atomic numbers.