A) \[X\] and \[Y\] are the same elements.
B) \[X\] and \[Z\] are the same elements.
C) \[X\] has more protons than \[Y\].
D) \[Z\] has more neutrons than\[Y\].
Correct Answer: A
Solution :
Elements \[X\] and \[Y\] have same proton number, hence, they are the same elements. The number of neutrons of \[X,\,\,Y\] and \[Z\] are \[21,\,\,20,\,\,20\] respectively.You need to login to perform this action.
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