Question

66 POINTS! Which is true about the four atoms shown in figures A, B, C, and D?

Answer 1

-- A and B are the same element.

-- C and D are the same element, and a different element than A and B.

This is choice-A .

It all comes down to counting the number of protons in the nucleus of each atom.

Answer 2

Answer:

A

Explanation:

A and B are isotopes of one another but the same element

C and D are isotopes of one another but the same element

However, A and B have a different proton count than C and D, indicating different elements because the proton count is equivalent to the atomic number.