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all concepts Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What is an element?

A

A substance that cannot be broken down into simpler substances

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2
Q

What are the six most common elements in living things?

A

chonps

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3
Q

What are trace elements?

A

Elements that are needed in very small amounts

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4
Q

How do plants obtain trace elements? How do animals?

A

Plants absorb them by absorbing them through their roots.

Animals obtain them from the foods they eat.

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5
Q

What is an atom?

A

The smallest particle of an element that still has the properties of that element

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6
Q

What is the nucleus?

A

Center of an atom

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7
Q

What two particles comprise the nucleus?

A

protons and neutrons

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8
Q

Where are electrons found?

A

electron cloud

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9
Q

What is the charge of a proton?

A

positive

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10
Q

What is the charge of a neutron?

A

neutral

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11
Q

What is the charge of an electron?

A

negative

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12
Q

What is the charge of the nucleus?

A

overall positive

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13
Q

What does the atomic number represent?

A

number of protons

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14
Q

what is an isotope

A

atoms of the same element with a different number of neutrons (same number of p+)

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15
Q

How do you calculate the number of neutrons for an elements given the mass number?

A

Subtract the number of protons from the mass number

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16
Q

What is a compound?

A

A substance that is composed of two or more different chemically bonded elements

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17
Q

What type of bonds can carbon form?

A

covalent

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Biology (3 decks)

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