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6 Oct 2020
Does a nucleus designated as 
(a) 20 neutrons and 20 protons,
(b) 22 protons and 18 neutrons,
(c) 18 protons and 22 neutrons,
(d) 18 protons and 40 neutrons,
(e) 40protons and 18 neutrons,
Does a nucleus designated as 
(a) 20 neutrons and 20 protons,
(b) 22 protons and 18 neutrons,
(c) 18 protons and 22 neutrons,
(d) 18 protons and 40 neutrons,
(e) 40protons and 18 neutrons,
Uttam SaikiaLv10
8 Dec 2020
