Vocab 2/3 Flashcards

0
Q

Physical Property

A

A characteristic of a substance that can change without the substance becoming diffrent

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1
Q

Element

A

A substance that can not be decomposed into simpler substance by chemical or physical means

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2
Q

Compound

A

A substance with constant composition that can be broken down into elements by chemical processes

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3
Q

Solid

A

Has a fixed shape and volume

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4
Q

Chemical properties

A

The ability of a substance to change into a different substance

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5
Q

Gas

A

No fixed shape or volume

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6
Q

Chemical Change

A

The change of a substance into another substance through reorganization of atoms

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7
Q

Matter

A

The material of the universe

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8
Q

Liquid

A

Fixed volume but takes the shape if its container

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9
Q

Alloy

A

Substance that contains a mixture of elements and has metallic properties

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10
Q

Electron

A

A negatively charged particle that occupies the space around the nucleus of an atom

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11
Q

Nucleus

A

A small dense center if positive charge in an atom

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12
Q

Isotopes

A

Atoms of the same element that have a different number of protons and neutrons with the same atomic number

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13
Q

Atomic Number

A

The number of protons in the nucleus of an atom

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14
Q

Mass Number

A

The total number of protons and neutrons in the nucleus of an atom

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15
Q

Ion

A

An atom that has a different number of protons than electrons. Formed by transfer or sharing of electrons only

16
Q

Neutron

A

A particle with a mass approximately equal to the proton but it has no charge

17
Q

Cation

A

A positive ion

18
Q

Proton

A

A positively charged molecule in an atoms nucleus

19
Q

Anion

A

A negative ion