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WorksheetsPeriodic Table Basics and Bohr Models
Total questions: 28
Worksheet time: 25mins
Name
Class
Date
1.
What element is this?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
2.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
None of these
3.
How many electrons does potassium K contain? (click to see image)
a)
19
b)
39
c)
20
d)
40
4.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
5.
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
6.
How many dots would a Lewis Dot structure of Helium have?
a)
1
b)
2
c)
8
d)
0
7.
How many valence electrons are in Phosphorus?
a)
15
b)
4
c)
5
d)
31
8.
The majority of an atom's mass exists where?
a)
In the nucleus
b)
In the electron cloud
c)
In the space between the nucleus and the electrons
d)
In the neutrons
9.
How many electrons are in the outer shell of Sodium (Na)?
a)
3
b)
1
c)
2
d)
4
10.
?
a)
Boron
b)
Carbon
c)
Nitrogen
d)
Lithium
11.
?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
12.
?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
13.
?
a)
Helium
b)
Oxygen
c)
Sodium
d)
Phosphorous
14.
?
a)
Beryllium
b)
Boron
c)
Barium
d)
Bromine
15.
How many electrons should Hydrogen have around its Lewis dot model?
a)
1
b)
2
c)
7
d)
8
16.
How many electrons should Lithium have around its Lewis dot model?
a)
1
b)
2
c)
3
d)
4
17.
How many electrons should Beryllium have around its Lewis dot model?
a)
1
b)
2
c)
3
d)
4
18.
How many electrons should Boron have around its Lewis dot model?
a)
1
b)
3
c)
5
d)
7
19.
How many electrons should Nitrogen have around its Lewis dot model?
a)
1
b)
3
c)
4
d)
5
20.
How many electrons should Magnesium have around its Lewis dot model?
a)
1
b)
2
c)
3
d)
4
21.
How many electrons should Chlorine have around its Lewis dot model?
a)
5
b)
6
c)
7
d)
8
22.
an element will always have the same number of
a)
neutrons
b)
protons
c)
isotopes
d)
atoms
23.
How are electrons arranged in an atom?
a)
In groups of five
b)
In energy levels
c)
By color
d)
By shape
24.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
25.
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
26.
The period for Bromine is ___________.
a)
3
b)
2
c)
4
27.
What does an atom's period tell us?
a)
Number of protons
b)
Number of electrons
c)
Number of valence electrons
d)
Number of shells
28.
What does an atom's group tell us?
a)
Number of protons
b)
Number of electrons
c)
Number of valence electrons
d)
Number of shells
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