Question

Two atoms, X and Y, can be represented as shown.
A1 X .
45Y
20
20

Which statement is not correct? With explanation.
A. X and Y are atoms of different elements.
B. X and Y are isotopes.
C. X and Y have different mass numbers.
D. X and Y have the same number of electrons.​

Answer 1

Answer:

x and y are atoms of different element