Multiple Choice
Which of the following is the number of protons in a neutral atom of copper (Cu)?
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Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
How many electrons does a neutral atom of zinc contain?
A
30
B
65
C
12
D
18
Verified step by step guidance1
Identify the atomic number of zinc from the periodic table. The atomic number represents the number of protons in the nucleus of an atom.
Recall that a neutral atom has an equal number of protons and electrons to balance the charge.
Since zinc is neutral, the number of electrons equals its atomic number.
Look up zinc's atomic number, which is 30.
Conclude that a neutral atom of zinc contains 30 electrons.
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