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How many protons are in an element with an atomic number of 8 and a mass number of 18? a. 8 b. 10 c. 18 d. 3
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How many protons are in an element with an atomic number of 8 and a mass number of 18?

a. 8
b. 10
c. 18
d. 3

User Burnsi
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2 Answers

1 vote
Since the atomic number is 8 that will be the number of protons given that the element is a neutral element meaning that the number of protons and electrons are the same. Therefore the answer is 8
User Andree Wille
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4 votes
a)8,atomic number also means proton number
User Pulkit Sharma
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7.9k points
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