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Physical Science
Test Description: Physical Science
Instructions: Answer all questions to get your test result.
1) Mass cannot be created or destroyed. The mass of the reactants is the same as or equal to the mass of the product.
A
Covalent Bond
B
Law of Conservation of Mass
C
Atomic Mass
D
Atomic Number
2) The Bohr Model
A
shows you each level of electrons
B
shows you that each dot represents valence electrons only
C
shows you that any element can be arranged on the periodic table
D
shows you that any change results in the formation of new chemical substances
3) The Electron Dot Diagram
A
shows you that each dot represents valence electrons only
B
contains rings
C
has many characteristics that are helpful when determining a chemical reaction
D
shows you each level of electrons
4) The atomic mass
A
the total number of protons
B
the number of electrons
C
maybe considered to be the toal mass of protons, neutrons, and electrons in a single atom
D
a negative number
5) A chemical reaction where atoms steal an electron is
A
a polar covalent bond
B
a covalent bond
C
a bonding experience
D
an ionic bond
6) A physical change
A
rearranges molecules, but does not affect their internal structure
B
when the burning of a substance occurs
C
changes the structure completely
D
changes the internal structure
7) A substance that contains two or more elements
A
Element
B
Neutron
C
Compound
D
Proton
8) A vertical column in the periodic table of the chemical elements. There are 18 of them.
A
Periods
B
Models
C
Diagrams
D
Groups
9) Elements are arranged in order of increasing atomic number as you go from left to right across the table
A
Group
B
Period
C
Diagram
D
Model
10) The outermost shell of an atom
A
Neutrons
B
Protons
C
Electrons
D
Valence electrons
*select an answer for all questions
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