jailinealvarado24
18.12.2020 •
Physics
Which statement(s) about neutrons is/are TRUE?
SELECT ALL THAT APPLY
a
The major clue to their existence was extra
mass in atoms that protons and electrons
could not account for.
b They have the same mass as protons.
They were observed and measured directly,
like protons and electrons were.
d They have a negative charge.
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Ответ:
Explanation: the nucleus was viewed as composed of combinations of protons and electrons, the two elementary particles known at the time, but that model presented several experimental and theoretical contradictions.
AND
Protons and neutrons have approximately the same mass, about 1.67 × 10-24 grams.
Ответ:
Explanation:
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