A) isotopes
B) the same nuclei
C) isoelectronics
D) isomers
Correct Answer: A
Solution :
Let mass number of A be\[x\]and its atomic number be y. Then for B, C and Z), respective quantities are \[(x+y+1),(x,y+2)\] and \[(x+4,y).\] For A and D, atomic number of protons is same but numbers of neutrons are different, hence they are isotopes.You need to login to perform this action.
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