Chemistry Review Ch. 9-11 Question Preview (ID: 46940)


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Which element is NOT a metalloid?
a) silicon
b) polonium
c) iron
d) boron

Which is NOT true about the Periodic table of the Elements ?
a) they are arranged alphabetically
b) there are over 100 elements listed
c) the horizontal rows are called periods
d) the vertical rows are called columns

Which is NOT true ?
a) protons and neutrons have the same mass
b) neutrons have no electrical charge
c) different elements contain different numbers of protons
d) when a neutral atom gains an electron it becomes an isotope

The atomic mass of an element is the average of all known ______ of that element.
a) ions
b) compounds
c) isotopes
d) radioactive forms

Which statement about the nucleus is true ?
a) it contains protons and electrons
b) it always has a positive charge
c) it has very little mass
d) it always has a negative charge

Isotopes are atoms of the same element with a different number of
a) electrons
b) protons
c) neutrons
d) quarks

Which of these is NOT a compound ?
a) water
b) air
c) salt
d) carbon dioxide

Which is NOT an Alkali metal ?
a) magnesium
b) sodium
c) potassium
d) lithium

How many valence electrons does Lithium have ?
a) 1
b) 2
c) 3
d) 4

Water is
a) unstable
b) an ionic molecule
c) a polar molecule
d) a metalloid

Which is NOT a Noble gas ?
a) Neon
b) Krypton
c) Fluorine
d) Helium

An ion is an atom that is no longer
a) stable
b) negative
c) neutral
d) positive

The symbol for Silver is
a) Au
b) Ag
c) S
d) Si

A molecule is a group of atoms held together by
a) covalent bonding
b) ionic bonding
c) gravity
d) pressure

Metals are good conductors because the ______ can move from ion to ion.
a) protons
b) neutrons
c) electrons
d) valence electrons

What would make bromine, atomic number 17 , stable ?
a) losing an electron
b) gaining an electron
c) losing 2 electrons
d) gaining 3 electrons

What is shared in a metallic bond ?
a) neutrons
b) pooled valence electrons
c) protons
d) negatively charged ions

Where are valence electrons found ?
a) in the electron level closest to the nucleus
b) in the nucleus
c) in the outermost electron level
d)

__________ is a group of atoms held together by covalent bonding.
a) A metalloid
b) A molecule
c) An ion
d) An isotope

The atoms of a noble gas do not bond easily with other atoms because their valence electrons are
a) absent
b) moving
c) stable
d) neutral

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