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WorksheetsElectrons and Bonding
Total questions: 25
Worksheet time: 16mins
Name
Class
Date
1.
a)
2
b)
8
c)
3
d)
13
2.
a)
4
b)
6
c)
8
d)
10
3.
a)
17
b)
18
c)
7
d)
3
4.
a)
14
b)
4
c)
3
d)
28
5.
a)
1
b)
5
c)
37
d)
48
6.
a)
4
b)
8
c)
18
d)
36
7.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
8.
What is the name of the group that never reacts--ever ever they are stable with a full outermost ring!!!
a)
noble gases
b)
transition
c)
halogens
d)
borons
9.
The period for Bromine is ___________.
a)
3
b)
2
c)
4
10.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
11.
How many electrons should Carbon have around its Lewis dot model?
a)
1
b)
3
c)
4
d)
5
12.
How many electrons does potassium K contain? (click to see image)
a)
19
b)
39
c)
20
d)
40
13.
Why do ionic bonds form?
a)
so the number of protons equals the number of electrons
b)
to fill the outermost energy level
c)
so an atom can become unstable
14.
An electron has what kind of charge?
a)
no charge
b)
positive
c)
negative
d)
it depends
15.
a proton has what charge?
a)
positive
b)
negative
c)
no charge
d)
it depends
16.
All of the elements in the same group (column) have EQUAL #s of _______.
a)
Protons
b)
Neutrons
c)
Electrons
d)
Valence Electrons
17.
An atom with 3 valence electrons "wants" a full shell, so it can either gain 5 or lose 3. Which is more likely to occur?
a)
Gain 5
b)
Lose 3
c)
Nothing
18.
if METALS are more likely to LOSE electrons, they will form ...
a)
anions
b)
neutral atoms
c)
positive ions
d)
negative ions
19.
If an aluminum atom has 13 protons (+) and 10 electrons (-), what is it's charge?
a)
Al3+
b)
Al13+
c)
Al10+
d)
Al10-
20.
Atoms that gain electrons become...
a)
negatively charged
b)
positively charged
c)
remain neutrally charged
d)
21
21.
Atoms that lose electrons become...
a)
negatively charged
b)
postively charged
c)
remain neutral, no charge
d)
losers
22.
An atom that has gained or lost electrons is called ...
a)
a winner
b)
an isotope
c)
an ion
d)
a loser
23.
When the number of electrons equals the number of protons the atom has what charge?
a)
sponge bob
b)
positive charge
c)
negative charge
d)
neutral charge
24.
Which two elements could form an ionic compound?
a)
#6 carbon and #8 oxygen
b)
#1 hydrogen and #7 nitrogen
c)
#3 lithium and #9 fluorine
d)
#5 boron and #10 neon
25.
In order to have a stable arrangement elements need ___________ electrons in the outer shell
a)
5
b)
6
c)
7
d)
8
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