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Worksheets7.11 Mid Unit Review Chemistry
Total questions: 65
Worksheet time: 33mins
What is a valence electron?
Electrons in the first energy shell
Electrons in the second energy shell
Electrons in the outer shell
Total number of electrons
How many valence electrons are in the Bohr model of Carbon?
2
3
4
5
Elements in Group number 17 are known as
Alkai Metals
Alkaline Metals
Halogens
Noble Gases
How many electrons can fit on the 1st energy level (shell) for any Bohr Model?
2
6
8
10
Where are the non-metals located ?
To the right of the Zig Zag line
Touching the Zig Zag line
To the left of the Zig Zag line
Were are the metalloids located on the periodic table?
On the left of the Zig Zag line
On the right of the Zig Zag line
Touching the Zig Zag line
The columns in the periodic table are called ___________.
Towers
Periods
Groups
Compounds
Rows on the periodic table are called ___________.
Periods
Groups
Families
Halogens
Elements in the same group or column have the same ...
# of valence electrons
# of shells
# of protons
Mass Number
A substance with characteristics of metals and nonmetals.
metalloid
element
compound
atom
A substance that conducts heat and electricity well, is shiny, and is malleable.
metal
nonmetal
atom
element
Elements in Group number 1 are known as
Alkai Metals
Alkaline Metals
Halogens
Noble Gases
Elements in a period have the same number of ___________.
valence electrons
protons
neutrons
electron shells
The blue elements are the...
metals
nonmetals
metalloids
How many electrons can fit on the 2nd energy level (shell) for any Bohr Model?
2
6
8
10
Given the Bohr model of Carbon, what group must Carbon be in?
2
3
4
5
Given the Bohr model of Carbon, what period must Carbon be in?
2
3
4
5
Given the Bohr Model for Fluorine, which group must the element be in?
7
2
6
9
Given the Bohr Model for Fluorine, which period must the element be in?
7
2
6
9
Given the Bohr Model of Magnesium, which group and period is the element located?
Group 2 Period 3
Group 3 Period 3
Group 2 Period 2
Group 3 Period 12
Group 12 Period 3
Which of the following are subatomic particles? (Check all that apply)
protons
neutrons
megatrons
electrons
What is a subatomic particle with a negative charge? It is found in the electron cloud surrounding the nucleus.
neutron
proton
electron
electron cloud
The atomic mass is
36
Kr
84.80
The atomic number is
63.546
29
The element symbol is
Chlorine
Cl
17
The atomic number is
16
32.066
S
Sulfur
The element name is
Na
Sodium
11
22.990
The atomic mass is
7
14.007
The atomic number is
12.011
6
The element name is
B
Boron
5
The atomic mass is
5
10.811
The element symbol is
Be
Beryllium
4
The atomic number is
3
6.941
1
2
The atomic mass is
3
6.941
The atomic number is
2
4.003
He
The element name is
He
Helium
2
The element symbol is
1
H
Hydrogen
1.008
What is the atomic mass of this element?
20
60
40
41
What is the symbol of this element?
Calcium
P
Ca
C
What is the number of protons that the element in this image contain?
14
7
15
18
What is the atomic number of this element?
20
60
40
41
Fruit Loops, pizza, and Skittles are examples of ____________________ mixtures.
heterogeneous
homogeneous
pure
Coffee, mouthwash, and vinegar are examples of __________________ mixtures.
heterogeneous
homogeneous
pure
Which of these is an element?
Salt (NaCl)
Water (H20)
Oxygen (O)
Carbon Dioxide (CO2)
Which of these is a compound?
Aluminium (Al)
Carbon Dioxide (CO2)
Nitrogen (N)
Sand
Which form of matter has a definite shape and takes up space (has definite volume)?
liquid
solid
gas
What state of matter?
Solid
Liquid
Gas
Plasma!!!
What state of matter?
Solid
Liquid
Gas
Sweet Tea, everything is mixed evenly and looks the same.
Heterogeneous Mixture
Homogeneous Mixture
Example of a homogeneous mixture
sweet tea
pizza
guacamole
helium
Example of an element
sweet tea
pizza
guacamole
helium
