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| Topic: |
Science
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| Number of pages / Number of words: |
37 / 10340 |
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The number of protons is fixed, but the number of neutrons can vary within the same element. Thus, the same element may have different atomic masses. Atoms of the same element that have different atomic masses are called isotopes:
Hydrogen: 1p, 1e- Deuterium:1p, 1n, 1e- Tritium: 1p, 2n, 1e-
1 amu 2 amu 3 amu
Some combinations of protons and neutrons are stable, but other combinations are internally unstable and break down spontaneously...
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Thus, the same element may have different atomic masses. Atoms of the same element that have different atomic masses are called isotopes:
Hydrogen: 1p, 1e- Deuterium:1p, 1n, 1e- Tritium: 1p, 2n, 1e-
1 amu 2 amu 3 amu
Some combinations of protons and neutrons are stable, but other combinations are internally unstable and break down spontaneously...
Essay fragment
General points of the essay
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