객관식
What is the approximate nuclear radius r of the isotope 208 82Pb (lead-208)?
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객관식
What is the charge of the nucleus of a copper atom?
A
+34
B
+63
C
+29
D
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검증된 단계별 안내1
Recall that the charge of the nucleus of an atom is determined by the number of protons it contains, since protons have a positive charge and neutrons are neutral.
Identify the atomic number of copper (Cu) from the periodic table, which represents the number of protons in the nucleus.
Note that the atomic number of copper is 29, meaning there are 29 protons in its nucleus.
Since each proton has a charge of +1 elementary charge, the total charge of the nucleus is +29.
Therefore, the charge of the nucleus of a copper atom is +29.
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