Curriculum
Course: Alhussan Chemistry — Stage 7
Login

Curriculum

Alhussan Chemistry — Stage 7

Chapter 1: The Particle Model and States of Matter

0/19

Chapter 2: Elements, Compounds and Mixtures

0/32

Chapter 3: Metals and Non-Metals

0/19

Chapter 4: Chemical Reactions 1

0/17

Chapter 5: Acids and Alkalis

0/20

Chapter 6: The Earth and Plate Tectonics

0/13
Quiz

Chemistry 2.1 Elements and the periodic table — Quiz

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit
  • Questions count: 50
  • Passing grade: B+
Start Quiz
1.
Elements known rose from 59 to 83. Calculate the percentage increase.
41%
24%
29%
141%
2.
How many elements are known?
1000
92
46
118
3.
Which statement is NOT correct?
Most materials are mixtures.
Elements are listed in the periodic table.
Hydrogen, oxygen and nitrogen are gases at room temperature.
Gold has the symbol Go.
4.
Elements in the Earth's crust by mass (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
5.
Which statement is NOT correct?
The symbol for carbon is C.
Bromine is a gas at room temperature.
The symbol for oxygen is O.
Most elements are solids at room temperature.
6.
True or false? Most elements are gases.
True
False
7.
True or false? The symbol for iron is Ir.
True
False
8.
Number of elements known over time. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 2
A
B
C
D
9.
True or false? Water is an element.
True
False
10.
True or false? Most elements are solids at room temperature.
True
False
11.
Elements in the Earth's crust by mass (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 3
A
B
C
D
12.
True or false? Only mercury and bromine are liquids at room temperature.
True
False
13.
Number of elements known over time. By how much does "Elements known" change between 1700 and 2000?
Dr Dabour Hub Academy - figure 4
139
127
143
111
14.
Which is the correct definition of “Chemical symbol”?
A testable idea.
Element with symbol Fe from Latin ferrum.
A non-metal that is liquid at room temperature.
One or two letters that stand for an element.
15.
True or false? Each element has its own type of particle.
True
False
16.
States of the 118 elements at room temperature. What is the total of all the values?
Dr Dabour Hub Academy - figure 5
112
113
140
126
17.
Which statement is NOT correct?
Water is an element.
The symbol for carbon is C.
There are 118 known elements.
The symbol for iron is Fe.
18.
True or false? Gold has the symbol Go.
True
False
19.
Which statement is correct?
Most elements are gases.
Water is an element.
The symbol for carbon is C.
There are about 50 elements.
20.
88 of 118 elements occur naturally. How many are made in laboratories?
30
206
300
88
21.
The crust is 46% oxygen. What mass of oxygen is in 100 kg of rock?
2.2 kg
4600.0 kg
54.0 kg
46.0 kg
22.
90 of 118 elements occur naturally. How many are made in laboratories?
90
28
280
208
23.
The pie chart shows the states of the known elements at room temperature. What can you conclude?
Dr Dabour Hub Academy - figure 6
There are equal numbers of each
Most elements are gases
Liquids are the most common
Most elements are solids at room temperature
24.
Elements in the Earth's crust by mass (%). Which has the greatest value?
Dr Dabour Hub Academy - figure 7
Aluminium
Silicon
Iron
Oxygen
25.
Metals and non-metals in the periodic table. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 8
A
B
C
D
26.
Most elements are ____ at room temperature.
solids
plasmas
gases
liquids
27.
Which statement is NOT correct?
Each element has its own properties.
Neon is a gas used in signs.
Each element has its own type of particle.
Most materials are elements.
28.
Elements in the Earth's crust by mass (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 9
A
B
C
D
29.
Metals and non-metals in the periodic table. What is the total of all the values?
Dr Dabour Hub Academy - figure 10
94
131
118
105
30.
Everything in the Universe is made of one or more ____.
cells
liquids
mixtures
elements
31.
States of the 118 elements at room temperature. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 11
A
B
C
D
32.
Elements in the Earth's crust by mass (%). About how many times bigger is Oxygen than Iron?
Dr Dabour Hub Academy - figure 12
15.8
5.2
10.5
21.0
33.
Which statement is correct?
Mercury is a solid at room temperature.
Most elements are gases.
There are 118 known elements.
All elements are natural.
34.
Which statement is correct?
Most materials are elements.
There are about 50 elements.
Hydrogen, oxygen and nitrogen are gases at room temperature.
Elements can be split into simpler substances.
35.
True or false? Neon is a gas used in signs.
True
False
36.
True or false? Bromine is a gas at room temperature.
True
False
37.
108 of 118 elements are solid. What percentage?
8%
92%
10%
915%
38.
The crust is 46% oxygen. What mass of oxygen is in 50 kg of rock?
27.0 kg
23.0 kg
2300.0 kg
1.1 kg
39.
Which term matches this definition? “One or two letters that stand for an element.”
Iron
Capital letter
Chemical symbol
Halogens
40.
States of the 118 elements at room temperature. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 13
A
B
C
D
41.
Number of elements known over time. Between which two values of "Year" did "Elements known" change the most?
Dr Dabour Hub Academy - figure 14
1900 and 1950
1750 and 1800
1800 and 1850
1850 and 1900
42.
True or false? Elements can be split into simpler substances.
True
False
43.
Number of elements known over time. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 15
"Elements known" stays the same
"Elements known" decreases as "Year" increases
"Elements known" rises to a peak at 2000, then falls
"Elements known" increases as "Year" increases
44.
True or false? Most elements are gases at room temperature.
True
False
45.
Elements known rose from 33 to 83. Calculate the percentage increase.
152%
50%
252%
60%
46.
Metals and non-metals in the periodic table. About how many times bigger is Metals than Metalloids?
Dr Dabour Hub Academy - figure 16
11.8
23.6
17.7
5.9
47.
Elements known rose from 59 to 118. Calculate the percentage increase.
59%
50%
200%
100%
48.
Only mercury and ____ are liquids at room temperature.
sodium
chlorine
bromine
iodine
49.
True or false? Mercury is a solid at room temperature.
True
False
50.
The symbol for carbon is ____.
Ca
C
Co
Cr
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
Part of Chapter 2: Elements, Compounds and Mixtures — see every lesson and quiz in this unit.
Accepted payment methods