What do the elements in the oxygen family (group 16) have in common?
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a. they are all gases.
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b. they tend not to react with other elements.
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c. they are all nonmetals.
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d. they tend to react in similar ways.

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

Which type of orbits are found in the principal energy level n = 2 a - s b - s, f c - s, d d - s, p e - s, p, d

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.