exam 2 (2.1) Flashcards
1
Q
True or False: Most of the elements on the periodic table are metals
A
True
2
Q
What is the group name of helium?
A
Noble Gases - have low reactivity
3
Q
Which groups contain elements that are the most reactive?
A
Alkali Metals
4
Q
The atomic number of an element is the same as the number of _____
A
Protons
5
Q
What is the symbol of sodium?
A
Na
6
Q
What is the symbol for Lithium?
A
Li
7
Q
What is the symbol for hydrogen?
A
H
8
Q
What is the symbol for Beryllium?
A
Be
9
Q
What is the symbol for Magnesium?
A
Mg
10
Q
What is the symbol for Potassium?
A
K
11
Q
What is the symbol for Calcium?
A
Ca
12
Q
What is the symbol for Rubidium?
A
Rb
13
Q
What is the symbol for Strontium?
A
Sr
14
Q
What is the symbol for Cesium?
A
Cs
15
Q
What is the symbol for Barium?
A
Ba
16
Q
What is the symbol for Francium?
A
Fr
17
Q
What is the symbol for Radium?
A
Ra
18
Q
What is the symbol of Helium?
A
He
19
Q
What is the symbol of Boron?
A
B
20
Q
What is the symbol of Carbon?
A
C
21
Q
What is the symbol of Nitrogen?
A
N
22
Q
What is the symbol of Oxygen?
A
O
23
Q
What is the symbol of Flourine?
A
F
24
Q
What is the symbol of Neon?
A
Ne
25
What is the symbol of Aluminum?
Al
26
What is the symbol of Silicon
Si
27
What is the symbol for Phosphorus?
P
28
What is the symbol of Sulfur?
S
29
What is the symbol of Chlorine?
Cl
30
What is the symbol of Argon?
Ar
31
What is the symbol of Arsenic?
As
32
What is the symbol of Selenium?
Se
33
What is the symbol of Bromine?
Br
34
What is the symbol of Krypton?
Kr
35
What is the symbol of Iodine?
I
36
What is the symbol of Xenon?
Xe
37
What is the symbol of Radon?
Rn
38
Alkali Metals are in which group?
Group 1
39
Transition Metals are in which group?
Groups 3-12
40
Alkaline-Earth Metals are in which group?
Group 2
41
Noble gases are in which group?
Group 18
42
What elements are Metalloids?
B, Si, Ge, As, Sb, Te
43
Which group in the periodic table are halogens?
Group 17
44
Which group of elements is known for being highly reactive and forming salts when combined with metals?
Alkali Metals
45
Which of the following is a characteristic of noble gases?
A. They are highly reactive.
B. They are inert (non-reactive).
C. They are metals.
D. They are liquids at room temperature.
B. They are inert (non-reactive)
46
Which of the following elements is a metalloid?
A. Oxygen
B. Silicon
C. Chlorine
D. Iron
Silicon (Si)
47
Which of the following elements is in the same group as magnesium (Mg)?
A. Sodium (Na)
B. Calcium (Ca)
C. Potassium (K)
D. Iron (Fe)
Calcium (Ca)
48
Which element is a nonmetal and essential for life, making up part of DNA and proteins?
A. Carbon
B. Neon
C. Sodium
D. Argon
Carbon (C)
49
What do elements in the same column (group) of the periodic table have in common?
A. Same atomic number
B. Same number of electrons in their outer shell
C. Same number of protons
D. Same number of neutrons
B. Same number of electrons in their outer shell
50
Which of the following is true about transition metals?
A. They are highly reactive.
B. They form colorful compounds.
C. They are all gases at room temperature.
D. They are nonmetals.
C. They form colorful compounds
51
What is an atom?
The smallest identifiable unit of an element
52
What is a compound?
Contains two or more types of atoms
53
What is matter?
Anything that has mass and takes up space
54
What is a molecule?
Contain two or more atoms chemically bonded together
55
What is an element?
Contains only one type of atom
56
What is Li?
Lithium
57
What is Cs?
Caesium
58
What is Pt?
Platinum
59
What is Hg?
Mercury
60
What is Tin?
Sn
61
What is Xenon?
Xe
62
What is Germanium?
Ge
63
What is Manganese?
Mn
64
What is Magnesium?
Mg
65
Which of the following tends to have high densities?
Metals
Metalloids
Non-metals
Metals
66
Which of the following is ductile?
Metals
Metalloids
Non-metals
Metals
67
Which of the following is lutrous?
Metals
Metalloids
Non-metals
Metals
68
Which of the following is a good conductor of heat and electricity?
Metals
Metalloids
Non-metals
Metals
69
Which of the following tends to have higher melting points, causing them to be solid at room temp?
Metals
Metalloids
Non-metals
Metals
70
Which of the following are poor conductors of heat and electricity?
Metals
Metalloids
Non-metals
Non-metals
71
Which of the following has low densities?
Metals
Metalloids
Non-metals
Non-metals
72
Which of the following are semiconductors?
Metals
Metalloids
Non-metals
Metalloids
73
Which of the following is a better conductor of heat and electricity than nonmetals but not as good as metals?
Metals
Metalloids
Non-metals
Metalloids
74
Which of the following is not shiny?
Metals
Metalloids
Non-metals
Metalloids
75
What is a diatomic element?
An element that naturally occurs as a two-atom molecule. It's the most stable form.
76
What are the 7 diatomic elements?
*Have no fear of ice cold beer*
Hydrogen (H2)
Nitrogen (N2)
Flourine (F2)
Oxygen (O2)
Iodine (I2)
Chlorine (Cl2)
Bromine (Br2)
77
What is a cation?
A positive ion
78
What is an anion?
A negative ion
79
What is an ion?
Charged particles that have lost or gained electrons
80
If sodium loses 1 electron... is it positive or negative?
Positive
81
If sulfur gains 2 electrons... is it positive or negative?
Negative
82
Group 1A have...
+1
+2
+3
Neutral
-3
-2
-1
+1 charge
83
Group 2A have...
+1
+2
+3
Neutral
-3
-2
-1
+2
84
Group 3A have...
+1
+2
+3
Neutral
-3
-2
-1
+3 charge
85
Group 5A have...
+1
+2
+3
Neutral
-3
-2
-1
-3 charge
86
Group 6A have...
+1
+2
+3
Neutral
-3
-2
-1
-2 charge
87
Group 7A have...
+1
+2
+3
Neutral
-3
-2
-1
-1 charge
88
Group 8A have...
0 charge (neutral)
89
What is Sc?
Scandium
90
What is Ti?
Titanium
91
What is V?
Vanadium
92
What is Cr?
Chromium
93
What is Mn?
Manganese
94
What is Fe?
Iron
95
What is Co?
Cobalt
96
What is Ni?
Nickel
97
What is Cu?
Copper
98
What is Zn?
Zinc
99
What is Pd?
Palladium
100
What is Pt?
Platinum
101
What is Ag?
Silver
102
What is Au?
Gold
103
What is Cd?
Cadmium
104
What is Hg?
Mercury
105
What is Ga?
Gallium
106
What is Ge?
Germanium
107
What is Sn?
Tin
108
What is Pb?
Lead
109
What is As?
Arsenic
110
What is Se?
Selenium
111
What is Br?
Bromine
112
What is I?
Iodine
113
What is Kr?
Krypton
114
What is Xe?
Xenon
115
What is Rn?
Radon
116
What is the symbol for Copper?
Cu
117
What is the symbol for mercury?
Hg
118
What is the symbol for potassium?
K
119
What is the symbol for silver?
Ag
120
What is the symbol for tin?
Sn
121
Which state(s) of matter gave an indefinite shape AND volume?
Solid
Liquid
Gas
Gas
122
Closeness of measured value to true value is...?
Accuracy
Precision
Error
Uncertainty
Accuracy
123
How many significant figures are in
20.00?
4 Significant figures
124
How many significant figures are in 0.00832?
3 significant figures
125
How many significant figures are in 85,000?
2 significant figures
126
How many significant figures are in 0.0240?
3 significant figures
127
Is sodium a ___
Alkaline metal
Alkaline earth metal
Halogen
Noble gas
Alkaline metal
128
Is krypton a ____
Alkaline metal
Alkaline earth metal
Halogen
Noble gas
Noble gas
129
Is calcium a ____
Alkaline metal
Alkaline earth metal
Halogen
Noble gas
Alkali earth metal
130
Is flourine a ___
Alkaline metal
Alkaline earth metal
Halogen
Noble gas
Halogen
131
Is Silicon a ____
Metal
Nonmetal
Metalloid
Metalloid
132
Is phosphorus a ___
Metal
Nonmetal
Metalloid
Non metal
133
Is barium a ___
Metal
Nonmetal
Metalloid
Metal
134
Is hydrogen a ___
Metal
Nonmetal
Metalloid
Non metal
135
What is the symbol for Gold?
Au
136
137
What is the symbol for Cesium?
Cs
137
What is the name of Pb?
Lead
137
How do you calculate average atomic mass?
Isotopic mass x abundance
