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A&P Unit 1 > Chapter 2 > Flashcards

Chapter 2 Flashcards

1
Q

What is matter?

A

Anything that takes up space or has mass

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2
Q

What does matter consist of?

A

Elements and compounds

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3
Q

What is an element?

A

Substance that cannot be broken down by chemical reactions

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4
Q

What is a compound?

A

Substance consisting of two or more elements in a fixed ratio

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5
Q

What are the essential elements of life?

A

Carbon
Hydrogen
Oxygen
Nitrogen

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6
Q

What are the remaining elements?

A

Calcium
Phosphorus
Potassium
Sodium
Chlorine
Iodine
Iron
Sulfur
Magnesium

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7
Q

What do we need minute quantities of?

A

Trace elements

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8
Q

What are elements made of?

A

Atoms

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9
Q

What are the subatomic particles?

A

Neutrons
Protons
Electrons

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10
Q

What subatomic particles have a mass of 1?

A

Neutrons and Protons

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11
Q

What determines the element?

A

Number of protons

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12
Q

Isotopes have a different number of…

A

Neutrons

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13
Q

What forms the atomic nucleus?

A

Neutrons and Protons

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14
Q

Atoms staying close together is called

A

Chemical bonds

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15
Q

What is a covalent bond

A

Sharing of valence electrons by two atoms

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16
Q

What is electronegativity

A

Atoms attraction for the electrons in a covalent bond

17
Q

Ionic bond is an attraction of what?

A

Anion and cation

18
Q

Inorganic compounds don’t contain what?

A

Carbon

19
Q

What is cohesion

A

attraction between water molecules due to hydrogen bonds

20
Q
A

A&P Unit 1 (2 decks)

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