Review Questions
These questions test vocabulary and simple concepts.
Light is given off by a sodium- or mercury-containing streetlight when the atoms are excited in some way. The light you see arises for which of these reasons?
(a) Electrons moving from a given quantum level to one of higher n.
(b) Electrons being removed from the atom, thereby creating a metal cation.
(c) Electrons moving from a given quantum level to one of lower n.
(d) Electrons whizzing about the nucleus in an absolute frenzy.
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