Free points A brief information about two atoms X and Y is given:X: Atomic number = 7, Mass number = 14Y: Atomic number = 7, Mass number = 15Which of the following is correct aboutthese two atoms?(A) Electronic configuration of X is 2, 8,4while that of Y is 2, 8, 5.(B) Both X and Y contain 7 neutrons.(C) X has 2 electron shells while Y has3 electron shells.(D) Both X and Y have 5 valence electrons.

Free points A brief information about two atoms X and Y is given:X:

1.	Free points A brief information about two atoms X and Y is given:X: Atomic number = 7, Mass number = 14Y: Atomic number = 7, Mass number = 15Which of the following is correct aboutthese two atoms?(A) Electronic configuration of X is 2, 8,4while that of Y is 2, 8, 5.(B) Both X and Y contain 7 neutrons.(C) X has 2 electron shells while Y has3 electron shells.(D) Both X and Y have 5 valence electrons.
Answer» (A) ELECTRONIC CONFIGURATION of X is 2, 8,4(A) Electronic configuration of X is 2, 8,4while that of Y is 2, 8, 5.Explanation:Hope it HELPS.