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Honors Bio Science > Chapter 2.1 And 2.2 Vocab > Flashcards

Chapter 2.1 And 2.2 Vocab Flashcards

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Biology 101 flashcards
1
Q

Atom

A

Is the smallest unit of matter

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2
Q

Nucleus

A

Is the center of an atom made of protons and neutrons

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3
Q

Electron

A

Negatively charged particle that is always in motion

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4
Q

Isotope

A

Atoms of the same element that are different in the number of neutrons

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5
Q

Compound

A

Is a substance formed by a chemical combination of two or more elements

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6
Q

Element

A

Is a pure substance made of the same type of atom

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7
Q

Ionic bond

A

Is formed when one or more electrons are transferred from one atom to another

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8
Q

Ions

A

A neutral atom that gain negative charge

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9
Q

Covalent bond

A

When atoms share electrons

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10
Q

Molecule

A

when atoms are joined by a covalent bond and make a structure

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11
Q

Vander Waals forces

A

The underside of a geckos foot has millions of hairs that make it stick to things

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12
Q

Hydrogen bond

A

The attraction between a hydrogen atom with a partial positive charge

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13
Q

Cohesion

A

The attraction between molecules of the same substance

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14
Q

Adhesion

A

The attraction between molecules of different substances

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15
Q

Mixture

A

A marterial composed of two or more elements

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16
Q

Solution

A

liquid mixture in which the minor component

17
Q

Solute

A

the minor component in a solution, dissolved in the solvent.

18
Q

Solvent

A

able to dissolve other substances

19
Q

Suspension

A

a heterogeneous mixture of a liquid and solid particles that do not dissolve in the liquid

20
Q

PH scale

A

To indicate the concentration of H+ ions in a solution

21
Q

Acid

A

Any compound that releases H+ ions in a solution

22
Q

Base

A

Is a compound that makes OH- ions in to a solution

23
Q

Baffer

A

Are weak acid and bases that can react with strong acids and bases to make sudden changes in PH

Honors Bio Science (2 decks)

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