The number of protons in an atom of sodium-23 is
A) 11
B) 12
C) 16
D) 23
Correct Answer:
Verified
Q73: Ca-40,K-39,and Sc-41 all have the same
A)atomic mass.
B)atomic
Q74: The Law of Definite proportions pertains to
A)compounds
Q75: Ions can be formed from atoms by
Q76: The name of the isotope containing one
Q77: Isotopes of an element always have the
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Q80: The element with atomic number 53 always
Q81: An atom of gallium has a mass
Q82: An ion that consists of 24 protons,30
Q83: Dalton's atomic model states that all atoms
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