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Atoms Test

Enter the letter for the matching Answer
incorrect
1.
An atom that has the same number of protons as other atoms of a element.
incorrect
2.
A Subatomic particle that has a positive charge and found in the nucleus.
incorrect
3.
In Physical science an atom's central region made up of protons and neutrons.
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4.
The number of protons in the nucleus of an atom.
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5.
The Smallest unit of an element that maintains the properties of that element.
A.
Nucleus
B.
Atom
C.
Proton
D.
Atomic Number
E.
Isotope
Type the Answer that corresponds to the displayed Question.
incorrect
6.
A region around the nucleus of an atom where electrons are found.
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7.
A subatomic particle with no charge, found in the nucleus.
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8.
The mass of an atom expressed in atomic mass units.
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9.
The sum of the numbers of protons and neutrons in the nucleus of an atom.
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10.
A Subatomic particle that has a negative charge.
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11.
A unit of mass that describes the mass of an atom or molecule.

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