Which symbol correctly represents an element (D) whose atoms contain 15 protons and 20 neutrons?
A. 20/15 D
B. 15/20 D
C. 35/15 D
D. 15/35 D

C?

Answers

Answered by DrBob222
If the 35 is a superscript and the 15 is a subscript, then C is correct.
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