Multiple Choice
Which of the following determines the identity of an element?
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- 1. Intro to General Chemistry3h 48m
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2. Atoms & Elements
The Atom
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
An atom has 15 protons and 14 neutrons. What is the atomic number of this atom?
A
29
B
14
C
15
D
1
Verified step by step guidance1
Recall that the atomic number of an atom is defined as the number of protons in its nucleus.
Identify the number of protons given in the problem, which is 15.
Understand that the number of neutrons does not affect the atomic number; it only affects the isotope of the element.
Therefore, the atomic number is equal to the number of protons, which is 15.
Conclude that the atomic number of the atom is 15.
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