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Physical Science E1

E 1

QuestionAnswer
The total electron capacity of the energy level n=3 is A. 16 B. 32 C. 18 D. 8 18
The result of dividing (8 x 10^4) by (2 x 10^-5) is A. 4 x 10^-2 B. 4 x 10^9 C. 4 x 10^8 D. 4 x 10^2 4 x 10^9
The atomic weight of potassium is 39.10. We can conclude that: A. potassium is a mixture of different isotopes, averaging 39.10 u. B. every atom of potassium has a mass of 39.10 u. C. an atom of potassium has a mass of 39.10 u. D. potassium has an is potassium is a mixture of different isotopes, averaging 39.10 u.
Neutral atoms of ^117Sn and ^119Sn differ in: the number of neutrons in the nucleus
Created by: niinimoshe
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