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Flash Cards. Changing number of +protons….. Changes the element.

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Presentation on theme: "Flash Cards. Changing number of +protons….. Changes the element."— Presentation transcript:

1 Flash Cards

2 Changing number of +protons….. Changes the element

3 Who did Gold Foil Experiment? Rutherford

4 Plum Pudding Model Thomson

5 Atom is made of mostly of… Empty space…..Rutherford

6 Metals ___________ -e lose

7 Rutherford: nucleus is… Small & +positive charge

8 Discovered -e Thomson

9 Solid ball model Dalton

10 Current accepted atomic model Electron cloud

11 Atomic model has scattered negative charges spread throughout Thomson

12 Non-metals ________ -e gain

13 Change number of neutrons… Creates isotopes

14 What will Ne react with? None – Noble gas

15 Most reactive metal family Alkali Metals #1

16 Period tells you… Number of energy shells

17 Most reactive non-metal Family Halogens

18 Planetary model Bohr

19 Number of electrons on first three shells… 2, 8, 18, 32

20 +p: 21 n: 23Atomic Mass? -e: 21 44

21 +p: 21 n: 23Atomic Number? -e: 21 21

22 Hot to the touch during reaction exothermic

23 H 2 O → H Type of reaction? Decomposition

24 Most reactive non-metal group Halogens

25 Ca + P → _________ Ca 2+ + P 3- → Ca 3 P 2 ?

26 Name of column #2 Alkaline Earth Metals

27 Bond that shares valance electrons Covalent

28 Metal + Metal Metallic Bond

29 Charged Particle Ion

30 Number of –e in outer shell Valance electrons

31 Reaction feels cold to the touch Endothermic

32 Heat always flows from ____ to ______. Hot areas to cold areas

33 Most reactive metal element Fr

34 Used CRT (cathode ray tube) Thomson

35 Model which has energy levels Bohr

36 Cl-38+p: ____ n: ____ -e: ____

37 Metal + Non-metal Ionic Bond

38 K + N → _________ K 1+ + N 3- → K 3 N

39 Thomson

40 Cu Average of isotopes Why?

41 pH 8-14 Base

42 Acid + Base = Water & salt

43 Dalton – solid sphere Who’s model?

44 pH 0-6 Acid

45 Neutral pH 7

46 Strong Acid pH 0-1

47 Weak Base pH 8-9

48 Reactant side of chemical equation Left _____ → ________

49 Strongest base? pH 1 pH 5 pH 8 pH 13 pH 13

50 Zn + 2HCl - ZnCl 2 + H 2 Type of reaction? Single Replacement

51 Why do cows wear bells? Because their horns don’t work.

52 2H 2 O 2 → 2H 2 O + O 2 Type of reaction? Decomposition

53 Electrically Neutral….. Same number + and -

54 Non-Metal + Non-metal Covalent Bond

55 Oxidation Charge Number for Fe ( IV ) 4+

56 What makes an atom stable? Full outside shell

57 The amount of energy that is put into a machine never equals the amount out of the machine. Why? Loss of energy to friction.

58 A bird flies 25-m in 4 seconds. What is its velocity? v = d t = 25 4 = 6.25 m/s

59 A car pulls away from a stop sign to a speed of 12 m/s in 3 seconds. What is its acceleration? a = v f - v i t = =4 m/s/s

60 How much force is required to accelerate a 9-kg cart at 6-m/s/s ? F = m a=(9)·(6)=54 N

61 For every action force there is an equal and opposite reaction force. Which law is this? Newton’s Third Law of Motion

62 What property makes a moving object resist changing its speed? Inertia

63 The amount of matter that is in a given object’s volume is called its______________. Density

64 The water level said 10 mL before the rock was added. After the graduated cylinder read 15 mL. What is the volume of the rock? 15-10= 5 mL

65 If the rock has a mass of 35 g, what is the density of the rock? D = m / V D = 35 / 5 D = 7 g/mL

66 How many electrons does Nitrogen-15 need in order to be stable? 3

67 How many electrons does Hydrogen need in order to be stable? 1

68 What type of chemical bond does a water molecule have? H 2 O Covalent

69 A dog chases a car running at 8 m/s for 4 seconds. How will the dog travel during this time? v = d t 8 = d 4 d4 · d=32 32 meters

70 What type of chemical bond does a table salt have? NaCl Ionic

71 Kim carried an 11-N box up a flight of stairs 6 meters high. How much work did she do? W = F · d W = 611· W =66 J

72 How much current will flow through a 2-Ω resistor when it is connected to a 24-V battery? V = I ·R 24 = 2 I I =24/2 = 12 Amps

73 How much power does a 100V motor have if it uses 20 amps? P = I ·V P = · P =2 000 Watts

74 What type of circuit is this? Parallel

75 What type of circuit is this? Series

76 What type of circuit is this? Series

77 What type of circuit is this? Parallel

78 What kind of object is the best to use as a frame of reference? Object attached to the ground. (ex: sign, tree, fence)

79 Put the atomic model scientist in historical order. Dalton Thomson Rutherford Bohr Schrödinger Bohr Dalton Rutherford Thomson Schrödinger

80 The part of the atom with the smallest mass. Electron

81 The number of protons remain the same, but neutrons are added. This creates… isotopes

82 99% of an atom’s mass exists in this location. nucleus

83 Our Moon is 1/6 th the size of the Earth; so an astronaut’s _____ will be less on the Moon. Weight

84 An astronaut traveling through space is weightless, but her ____ is still the same. Mass

85 A ball is dropped from a roof and it will begin to accelerate at _______. 9.8 m/s/s = “g”

86 How fast is an object going to be traveling after 2 seconds from being dropped? 2 x g = 2 x 9.8 = 19.6 m/s

87 The charge on a proton is… Positive

88 Which direction will the heat travel through these objects? Highest to lowest: A → B and C → B A 65°C B 23°C C 48°C

89 How can you create C-14 from C-12? Add two neutrons (isotopes)

90 The state of matter in which particles are vibrating in place. Solid

91 Where are the largest radius atoms located on the periodic table? Lower left corner (Fr)

92 How many protons does Phosphorous have? 15

93 The atomic number for Ni 28

94 The atomic mass of Cacium 40

95 S has how many neutrons? 35 – 16 =

96 A plane travels 400 km in 2 hrs. What is the plane's speed? v = d t = 200 km/hr

97 What will be the acceleration of a 20 kg cart after a 140 N force is applied? F = m · a 140 = 20 · a = a 20 7 m/s/s = a

98 Once an object is in motion it will stay in that motion unless a a net force acts on it. Newton’s 1 st Law of motion

99 For every action there is an equal and opposite reaction. Newton’s 3 rd Law of Motion

100 Bohr’s model of Boron Boron has 5 p+ and so 5 e-

101 What is the oxidation number of Carbonate? CO 3 is a polyatomic ion and has a (2-) charge.

102 What is the valence number of Mg ? 2

103 How many electron shells does Chlorine have? 3

104 It will take 500J of work to move a tractor. If this is done in 25 seconds, how much power is used? P = W t = 20 Watts

105 Oxygen will react more with… Magnesium or Potassium ? K …because it is closer to F corner.


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