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Worksheetsnaming ions
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
The relative atomic mass is the average mass of an atom compared to
a)
the mass of a carbon-12 atom.
b)
1/12 the mass of a carbon-12 atom
c)
the mass of a hydrogen atom
d)
1/12 the mass of a hydrogen atom
2.
The relative molecular mass of a compound is equal to the sum of its
a)
Atomic mass
b)
Atomic number
c)
Oxidation number
d)
Valence electrons
3.
What is the relative molecular mass of fluorine gas, F2?
a)
19
b)
38
c)
9
d)
18
4.
Find Molecular Mass: Calculate the mass of one mole of CO2 (carbon dioxide).
a)
18.0 grams
b)
44.0 grams
c)
14.0 grams
d)
180.0 grams
5.
What is the unit of relative molecular mass?
a)
kilogram
b)
gram
c)
gram per mole (g/mol)
d)
no units
6.
If an atom gains an electron to become an ion, it is a(n)....
a)
cation
b)
anion
c)
noble gas
d)
metal
7.
What is the formula for Sodium Nitrate?
a)
NaN
b)
NaN2
c)
Na(NO3)2
d)
NaNO3
e)
SN
8.
If copper(II) and phosphate bond together, the formula would be:
a)
Cu2(PO4)3
b)
CuPO4
c)
Cu3(PO4)2
d)
Cu3PO4
9.
The proper formula for magnesium hydroxide:
a)
MgOH
b)
Mg2OH
c)
Mg(OH)2
d)
Mg2OH2
10.
Name this ion: NH4+
a)
ammonia
b)
ammonium
c)
nitrate
d)
nitride
11.
Which is NOT a polyatomic ion?
a)
OH-
b)
Cl-
c)
HCO3-
d)
NH4+
12.
What is the correct formula for the polyatomic ion called sulphate?
a)
SO32–
b)
HSO4–
c)
SO42–
d)
CH3COO–
13.
Group 13 (III) elements would...
a)
Gain 3 electrons when becoming ions
b)
Lose 3 electrons when becoming ions
c)
Gain 5 electrons when becoming ions.
d)
Lose 13 electrons when becoming ions.
14.
What is the name of NF3?
a)
mononitrogen trifluoride
b)
nitrogen trifluoride
c)
nitrogen flouride
d)
nitrogen fluorine
15.
What is the formula for Sodium Bromide?
a)
NaBr
b)
NaBr2
c)
Na2Br
d)
Na3Br
16.
Ion made of more than one atom?
a)
Monoatomic ion
b)
Polyatomic Ion
c)
Lonely Ion
d)
Anxious Ion
17.
Which of the following types of elements often has more than one common ionic charge?
a)
alkali metal
b)
alkaline earth metal
c)
transition metal
d)
nonmetal
18.
Element: Oxygen
Ion Name: ?
Formula: ?
Ion Name: ?
Formula: ?
a)
Oxide: O2-
b)
Oxygen: O2-
c)
Oxate: O2-
d)
Oxite: O2-
19.
What is the element/ion symbol for Iron(III)?
a)
Fe
b)
Fe3+
c)
Fe3-
d)
Fe(III)
20.
How many electrons will sulfur gain to become stable?
a)
2
b)
6
c)
8
d)
3
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