AnswersTX-Chemistry A-CRCumulative Exam — Cumulative examQuestion 22
22
QuizMultiple Choice

Cumulative Exam — Cumulative exam

Question 22 • TX-Chemistry A-CR

A single atom of an element has 21 neutrons, 20 electrons, and 20 protons. Which element is it?

Answer
A
K
B
Zr
C
Ca
D
Sc
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A single atom of an element has 21 neutrons, 20…