Chemistry Review Question Preview (ID: 49173)


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What is the formula of sodium nitride?
a) Na3N
b) NaN3
c) Na2N
d) NaN

As you move from left to right across a period of the periodic table
a) atomic radius increases
b) ionization energy increases
c) electronegativity decreases
d) atomic mass decreases

In which of the following sets is the symbol of the element, the number of protons, and the number of electrons given correctly?
a) Cs, 55 protons, 132.9 electrons
b) F, 19 protons, 19 electrons
c) Zn, 30 protons, 60 electrons
d) In, 49 protons, 49 elect

Emission of light from an atom occurs when an electron
a) drops from a higher to a lower energy level
b) moves within its atomic orbital.
c) falls into the nucleus.
d) jumps from a lower to a higher energy level.

Oxygen is a group 6A nonmetal. What charge does oxygen typically form in a compound?
a) +2
b) -2
c) +6
d) -6

Experiments using cathode ray tubes led to the discovery of the
a) electron
b) positron
c) proton
d) neutron

Which of the following electromagnetic waves have the highest frequencies?
a) ultraviolet light waves
b) X-rays
c) gamma rays
d) microwaves

What family of metals is the most reactive?
a) Rare earth metals
b) Transition metals
c) Alkaline earth metals
d) Alkali metals

Which of the following shows correctly an ion pair and the ionic compound the two ions form?
a) Cu2+, O2-; Cu2O2
b) Cr3+, I-; CrI
c) Sn4+, N3-; Sn4N3
d) Fe3+, O2-; Fe2O3

A ________ bond is the strongest bond with the ________ length.
a) triple, shortest
b) double, longest
c) single, longest
d) triple, longest

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