An isotope is an atom of an element that varies in mass number due to variation in the number of
A) atoms.
B) protons.
C) neutrons.
D) electrons.
Correct Answer:
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Q16: When two atoms share a pair of
Q17: Given that an unknown atom's mass number
Q18: A base can be defined as
A) a
Q19: The smallest particle of an element that
Q20: A chemical reactant is one that
A) enters
Q22: A substance that is a solid
A) contains
Q23: An atom that has lost electrons is
Q24: If a particular atom has 27 electrons,
Q25: A solution that contains an excess of
Q26: AgNO3 + NaCl
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