The atomic number of an atom equals the number of ________, and the atomic weight equals the ________.
A) neutrons; number of protons
B) protons; weight of all the electrons
C) neutrons; number of protons plus electrons
D) protons; number of protons plus neutrons
Correct Answer:
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Q8: Considering the number of valence electrons carbon
Q9: Positron emission tomography (PET)imaging follows the emission of
A)positrons.
B)electrons.
C)neutrons.
D)protons.
Q10: Which of the following groups of elements
Q11: Which of the following isotopes has the
Q12: In a covalent bond
A)one atom loses and
Q14: Chemistry deals with
A)the composition of and changes
Q15: When K⁺ and Cl⁻ meet, they will
A)repel
Q16: In an ionic bond
A)each atom gains electrons.
B)atoms share
Q17: Which of the following substances is an
Q18: The isotope most likely to be used
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