Biology, 30.03.2021 21:50 azertyqwerty123
A Helium atom has 2 protons in the center of its nucleus. Therefore its atomic number is 2. Its mass is
greater than the mass of these 2 protons. Which of the following accounts for this difference in mass?
A neutrons
B molecules
C nuclei
D electrons
Answers: 2
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A Helium atom has 2 protons in the center of its nucleus. Therefore its atomic number is 2. Its mass...
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