Lecture 4: The atom Flashcards

1
Q

atoms are made up of

A

subatomic particles

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2
Q

metals properties

A

-conduct heat and electricity
-malleable (hammer)
-ductile (wire)
-shiny solid at room temp (not Hg)

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3
Q

non metal properties

A

-poor conduction
-gases at room temp

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4
Q

metalloids properties

A

properties of metals and nonmetals

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5
Q

Group 1

A

Alkali Metals

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6
Q

Group 2

A

Alkaline Earth Metals

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7
Q

Group 16

A

Chalcogens

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8
Q

Group 17

A

Halogens

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9
Q

Group 18

A

Noble Gases

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10
Q

neutral atoms

A

protons # = electron #

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11
Q

coulumbs law of electrostatic interaction

A

opposites attract

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12
Q

charges and force of attraction are

A

directly proportional

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13
Q

distance and force of attraction are

A

inversely proportional

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14
Q

strength of interaction depends on (2)

A

-magnitude of charges
-distance between them

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15
Q

Hard sphere model

A

john dalton, atoms like pool balls with hooks

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16
Q

Cathode Ray Tube

A

JJ Thompson, discovered electrons

17
Q

oil drop experiment

A

harvey fletcher, measured electron charge and size

18
Q

Plum pudding model

A

JJ thompson, electrons distributed through atom

19
Q

Gold foil experiment

A

Ernest Rutherford, particles bounced off nucleus, discovered nucleus