Multiple Choice
How many protons are present in an atom with an atomic number of 23 and a mass number of 51?
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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
How many protons are present in a neutral atom of manganese?
A
24
B
25
C
26
D
12
Verified step by step guidance1
Recall that the number of protons in a neutral atom is equal to the atomic number of the element.
Identify the element given in the problem, which is manganese.
Look up the atomic number of manganese on the periodic table; this number represents the number of protons.
Understand that in a neutral atom, the number of protons equals the number of electrons, but the question only asks for protons.
Conclude that the number of protons in a neutral manganese atom is the atomic number of manganese.
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