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Biology > Unit 2 Vocab - Introductory Chemistry > Flashcards

Unit 2 Vocab - Introductory Chemistry Flashcards

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0
Q

Any substance that occupies space

A

Matter

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1
Q

A pure substance consisting entirely of one atom

A

Element

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2
Q

The body that contains large quantities of these elements

A

Major element

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3
Q

The body that contains lesser amounts of these elements

A

Minor element

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4
Q

The body that contains very small amounts of these elements

A

Trace element

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5
Q

The most basic unit of matter

A

Atom

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6
Q

A particle of energy that has a positive charge

A

Proton

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7
Q

A particle of energy that has a negative charge

A

Electron

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8
Q

A particle of energy that has a neutral charge

A

Neutron

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9
Q

The number of protons in the nucleus of an atom, giving the atom its identity as a particular chemical element

A

Atomic Number

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10
Q

The total number of protons and neutrons in an atom

A

Mass number

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11
Q

Electrons in the outermost electron shell that are responsible for bonding

A

Valence Electrons

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12
Q

An atom or molecule that has lost or gained electrons and thus carried an electric charge, either positive or negative

A

Ion

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13
Q

A type of chemical bond in which atoms transfer valence electrons

A

Ionic bond

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14
Q

A type of chemical bond in which atoms share valence electrons

A

Covalent bond

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15
Q

A positively charged ion

A

Canion

16
Q

A negatively charged ion

A

Anion

17
Q

A substance made up of 2 or more atoms held together by bonds

A

Molecule

18
Q

A substance composed of 2 or more elements

A

Compound

19
Q

A chemical process that involves changes in the structure (and energy) content of atoms, molecules, or ions

A

Chemical reaction

20
Q

A representation of an entire chemical reaction using chemical symbols and contains the products and reactants

A

Chemical equation

21
Q

A letter abbreviation of a chemical element; symbols in periodic table

A

Chemical symbol

22
Q

A number that is written below a letter

A

Subscript

23
Q

Reference to the starting materials in a chemical reaction

A

Reactant

24
Q

Reference to the ending materials in a chemical reaction

A

Product

Biology (4 decks)

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