1-2 elements compound Flashcards

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1
Q

element

A

A pure substance that cannot be broken down into any simpler substance

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2
Q

compound

A

Any substance that is formed by the chemical combination of two or more elements and acts like a single substance

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3
Q

atom

A

The smallest unit of an element that retains the properties of that element.

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4
Q

proton

A

A particle in the nucleus of an atom that carries one unit of positive electric charge

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5
Q

neutron

A

A particle in the nucleus of an atom that has no met electric charge.

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6
Q

electron

A

A particle in the space outside the nucleus of an atom that carries one unit of negative electric charge

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7
Q

nucleus

A

A dense structure inside the cell

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8
Q

molecule

A

A particle that contains more than one atom joined together

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