An element's atomic number is the
a. mass of the atom.
b. weight of the atom.
c...
Physics, 21.09.2019 09:00 zackinator4894
An element's atomic number is the
a. mass of the atom.
b. weight of the atom.
c. number of protons in an atom's nucleus.
d. sum of the protons and neutrons in an atom.
Answers: 2
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Which of the following conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space? the cloud is extremely hot. the cloud is visible primarily because it reflects light from nearby stars. the cloud is cool and lies between you and a hot star. the cloud is cool and very dense, so that you cannot see any objects that lie behind it.
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