Ch. 3 And 4 Question Preview (ID: 18122)


Physical Science Test. TEACHERS: click here for quick copy question ID numbers.

What is the charge of an atom?
a) positive
b) neutral
c) negative
d) unbalanced

An Oxygen atom has 2 electrons in its inner energy level. How many electrons are in its outer energy level?
a) 4
b) 5
c) 6
d) 8

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