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Chemistry Review Ch. 9-11
Test Description: Review
Instructions: Answer all questions to get your test result.
1) What is shared in a metallic bond ?
A
negatively charged ions
B
pooled valence electrons
C
protons
D
neutrons
2) What would make bromine, atomic number 17 , stable ?
A
gaining an electron
B
losing an electron
C
gaining 3 electrons
D
losing 2 electrons
3) Metals are good conductors because the ______ can move from ion to ion.
A
electrons
B
neutrons
C
protons
D
valence electrons
4) An ion is an atom that is no longer
A
neutral
B
positive
C
stable
D
negative
5) The symbol for Silver is
A
Au
B
S
C
Si
D
Ag
6) A molecule is a group of atoms held together by
A
ionic bonding
B
pressure
C
covalent bonding
D
gravity
7) Water is
A
an ionic molecule
B
unstable
C
a polar molecule
D
a metalloid
8) Which is NOT a Noble gas ?
A
Neon
B
Helium
C
Krypton
D
Fluorine
9) How many valence electrons does Lithium have ?
A
3
B
4
C
2
D
1
10) Which of these is NOT a compound ?
A
air
B
carbon dioxide
C
salt
D
water
11) Which is NOT an Alkali metal ?
A
magnesium
B
potassium
C
lithium
D
sodium
12) Isotopes are atoms of the same element with a different number of
A
neutrons
B
protons
C
quarks
D
electrons
13) Which statement about the nucleus is true ?
A
it contains protons and electrons
B
it has very little mass
C
it always has a positive charge
D
it always has a negative charge
14) The atomic mass of an element is the average of all known ______ of that element.
A
compounds
B
radioactive forms
C
isotopes
D
ions
15) Which is NOT true ?
A
neutrons have no electrical charge
B
different elements contain different numbers of protons
C
protons and neutrons have the same mass
D
when a neutral atom gains an electron it becomes an isotope
16) Which is NOT true about the Periodic table of the Elements ?
A
the horizontal rows are called periods
B
there are over 100 elements listed
C
the vertical rows are called columns
D
they are arranged alphabetically
17) Which element is NOT a metalloid?
A
polonium
B
boron
C
silicon
D
iron
18) Where are valence electrons found ?
A
in the electron level closest to the nucleus
B
in the outermost electron level
C
in the nucleus
19) __________ is a group of atoms held together by covalent bonding.
A
An isotope
B
A metalloid
C
A molecule
D
An ion
20) The atoms of a noble gas do not bond easily with other atoms because their valence electrons are
A
absent
B
neutral
C
moving
D
stable
*select an answer for all questions
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