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Atom and PT Test

Enter the letter for the matching Definition
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1.
Periodic Table of Elements
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2.
atomic mass
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3.
metal
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4.
physical property
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5.
atomic number
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6.
electric charge
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7.
period
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8.
valence electrons
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9.
atom
A.
The sum of the charges within an atom.
B.
A chart where all of the elements are arranged according to their atomic number and properties
C.
The electrons in the outermost energy level of an atom.
D.
An element that is shiny, ductile, malleable, and a good conductor.
E.
A horizontal row of elements on the periodic table.
F.
A property of a substance that can be observed without changing the identity of the matter.
G.
The average mass of one atom of an element.
H.
The smallest particle into which an element can be divided and still have the properties of that element.
I.
The number of protons in the nucleus of an atom.
Type the Term that corresponds to the displayed Definition.
incorrect
10.
A negatively – charged particle that is located outside of the nucleus of the atom.
incorrect
11.
An element that has properties of both metals and nonmetals.
incorrect
12.
A particle with no charge that is located in the nucleus of the atom.
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13.
A specific area in an atom at a definite distance from the nucleus.
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14.
The region inside an atom where electrons may be found.
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15.
An element that is not shiny, ductile or malleable and is not a good conductor.
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16.
A vertical column of elements on the periodic table.
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17.
A positively – charged particle that is located in the nucleus of an atom.
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18.
A property of a substance that is based on its ability to react with another substance.
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19.
The center of an atom, containing the protons and neutrons.

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