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In the Present-Day Universe There Are About 10 Hydrogen Atoms

Question 54

Multiple Choice

In the present-day universe there are about 10 hydrogen atoms (1H) to each helium atom (4He) . Considering just hydrogen and helium (the vast majority of matter) , what is the ratio of neutrons to protons?


A) 1:10
B) 1:6
C) 1:4
D) 1:1

Correct Answer:

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