WorksheetsChemical Equations & Bonds
Total questions: 22
Worksheet time: 44mins
Name
Class
Date
1.
How many electrons will a neutral potassium atom lose to become stable?
a)
1
b)
2
c)
8
d)
7
2.
How many total electrons does Mg+2 (a magnesium ion) have?
a)
10
b)
12
c)
14
d)
22
3.
Negative ions (anions) form when neutral atoms _________ valence electrons.
a)
lose
b)
gain
c)
share
4.
How many electrons will a neutral sulfur atom gain to become stable?
a)
2
b)
6
c)
8
d)
3
5.
Ions are:
a)
atoms with a positive or negative charge
b)
atoms with no charge
c)
atoms with ONLY a positive charge
d)
atoms with ONLY a negative charge
6.
Why do elements form bonds?
a)
to get a charge
b)
so they can make friends
c)
to become stable by getting a full valence shell
d)
to become stable by increasing their mass
7.
Cations are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
8.
Anions are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
9.
Where are metals located on the periodic table?
a)
Blue
b)
Green
c)
Red
10.
Where are the nonmetals located on the periodic table?
a)
Blue
b)
Red
c)
Green
11.
What is the charge of an atom that has gained one electron?
a)
-1
b)
-2
c)
+1
d)
+2
12.
MgCl2
a)
Ionic
b)
Covalent
c)
Polyatomic Ion
d)
Metallic
13.
SO4
a)
Covalent
b)
Ionic
c)
Metallic
d)
Polyatomic Ion
14.
Why does CO2 not have a charge?
a)
The metal gives away an electron to the non-metal
b)
The metal takes the electron from the non-metal
c)
The non-metals equally share electrons
d)
The metal and the non-metal equally share electrons
15.
What makes up a covalent bond?
a)
Metal and a Metal
b)
Metal and a nonmetal
c)
nonmetal and a nonmetal
d)
metal and a metallid
16.
How many electrons should Carbon have around its Lewis dot model?
a)
1
b)
3
c)
4
d)
5
17.
Ca2+ and N3- create...
a)
Ca2N3
b)
Ca3N2
c)
CaN3
d)
Ca2N
18.
Be careful with this question.....
SO4 -2 and Al +3
SO4 -2 and Al +3
a)
(SO4)3Al2
b)
(SO4)2Al3
c)
Al3SO4
d)
Al2(SO4)3
19.
The three (3) indicates which part?
a)
reactants
b)
products
c)
equation
d)
formulas
20.
The two (2) is indicating _________.
a)
subscripts
b)
reactants
c)
coefficients
d)
aqueous
21.
H+ and S2- create...
a)
H2S
b)
HS2
c)
H2S2
d)
HS
22.
Na+ and Cl- create...
a)
Na2Cl
b)
NaCl2
c)
Na2Cl2
d)
NaCl
100 %
