Atomic number is the number of protons in the atom while mass number is the sum of the protons and neutrons in the atom.
chrispohmomanyi answered the question on October 19, 2017 at 04:29
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Date posted: October 6, 2017. Answers (1)
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(a)Name the major ore from which sodium is extracted
(b)why should ore be in molten form before electrolysis
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Date posted: October 6, 2017. Answers (1)