Lecture 4: The atom

Question 1

atoms are made up of

Answer 1

subatomic particles

Question 2

metals properties

Answer 2

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

Question 3

non metal properties

Answer 3

-poor conduction
-gases at room temp

Question 4

metalloids properties

Answer 4

properties of metals and nonmetals

Question 5

Group 1

Answer 5

Alkali Metals

Question 6

Group 2

Answer 6

Alkaline Earth Metals

Question 7

Group 16

Answer 7

Chalcogens

Question 8

Group 17

Answer 8

Halogens

Question 9

Group 18

Answer 9

Noble Gases

Question 10

neutral atoms

Answer 10

protons # = electron #

Question 11

coulumbs law of electrostatic interaction

Answer 11

opposites attract

Question 12

charges and force of attraction are

Answer 12

directly proportional

Question 13

distance and force of attraction are

Answer 13

inversely proportional

Question 14

strength of interaction depends on (2)

Answer 14

-magnitude of charges
-distance between them

Question 15

Hard sphere model

Answer 15

john dalton, atoms like pool balls with hooks

Question 16

Cathode Ray Tube

Answer 16

JJ Thompson, discovered electrons

Question 17

oil drop experiment

Answer 17

harvey fletcher, measured electron charge and size

Question 18

Plum pudding model

Answer 18

JJ thompson, electrons distributed through atom

Question 19

Gold foil experiment

Answer 19

Ernest Rutherford, particles bounced off nucleus, discovered nucleus