Models of four atoms are shown below as figures A, B, C, and D. Which two atoms represent isotopes of the same element?

A. A and B

B. A and C

C. C and D

D. B and C

Question

Models of four atoms are shown below as figures A, B, C, and D. Which two atoms represent isotopes of the same element?

A. A and B

B. A and C

C. C and D

D. B and C

anonymous · Answer

attachment

anonymous · Answer

um. It looks like C and D but I'm not sure

anonymous · Answer

ummmm

anonymous · Answer

c and d, cuz number of electron are equal

pratyush5 · Answer

C & D bcoz in isotopes the number of neutrons are different http://www.meritnation.com/ask-answer/question/write-5-6-differences-between-isobars-and-isotopes-in-a-t/structure-of-the-atom/3772374

pratyush5 · Answer

got it ?

aaronq · Answer

Isotopes are elements varying in the number of neutrons, the number protons is fixed (otherwise, they would be different elements).

SO for you example, the red spheres represent protons, so which ever one have the same number of protons (red spheres) but differ in the number of neutrons (yellow spheres) are isotopes.

aaronq · Answer

so, both A and B are isotopes AND C and D are isotopes.

aaronq · Answer

ps. post this in the chemistry section next time