Lesson 4.1.1.6
4.1.1.6 Relative atomic mass Quiz: AQA Chemistry, Unit 1
20 questions
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Lesson 4.1.1.6, Relative atomic mass: 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 1: Atomic structure and the periodic table, written with Revision Ninja.
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The 20 questions
-
What factor does relative atomic mass use alongside isotope masses?
- Isotope abundance
- Electron speed
- Melting point
- Nucleus volume
-
What type of value is the relative atomic mass of an element?
- A maximum mass
- A whole number
- An average value
- A fixed constant
-
What is the relative atomic mass of an element with two isotopes in equal abundance, masses 35 and 37?
- 35
- 37
- 36
- 72
-
Which data is needed to calculate the relative atomic mass of an element?
- Proton counts
- Neutron numbers
- Isotope abundances
- Electron shells
-
Chlorine has isotopes of mass 35 (75 percent) and 37 (25 percent). What is its relative atomic mass?
- 37.0
- 35.0
- 35.5
- 36.0
-
Boron has isotopes of mass 10 (20 percent) and 11 (80 percent). What is its relative atomic mass?
- 10.5
- 10.8
- 10.2
- 11.0
-
An element has isotopes of mass 63 (69 percent) and 65 (31 percent). Which value is its relative atomic mass?
- 64.0
- 63.0
- 65.0
- 63.6
-
Why is the relative atomic mass of chlorine not a whole number?
- Due to isotopes
- Nuclear decay
- Experimental error
- Electron loss
-
An element has two isotopes of mass 20 and 22, each with 50 percent abundance. What is its relative atomic mass?
- 42
- 21
- 22
- 20
-
An element has isotope masses 24 (79 percent) and 26 (21 percent). Its relative atomic mass is closest to:
- 24.4
- 26.0
- 24.0
- 25.0
-
A sample has isotope masses 107 (52 percent) and 109 (48 percent). What is the approximate relative atomic mass?
- 107.00
- 109.00
- 108.00
- 107.96
-
What do the percentage abundances of isotopes add up to in total?
- 50%
- 1000%
- 100%
- 10%
-
An element has three isotopes of equal abundance with masses 10, 11 and 12. What is its relative atomic mass?
- 33
- 10
- 11
- 12
-
What value is typically listed in the periodic table for an element's mass?
- Proton number
- Isotope mass
- Mass number
- Relative atomic mass
-
Two isotopes have masses 79 and 81 and are present in equal amounts. What is the relative atomic mass?
- 160
- 80
- 81
- 79
-
An element is 90 percent isotope 39 and 10 percent isotope 41. What is its relative atomic mass?
- 41.0
- 40.0
- 39.0
- 39.2
-
What unit is used for relative atomic mass?
- No units
- g per mol
- grams
- atomic mass units
-
Which factor has the greatest effect on an element's relative atomic mass?
- Most abundant isotope
- Atomic number
- Smallest isotope
- Total electron count
-
Hydrogen has isotopes of mass 1 (99 percent) and 2 (1 percent). What is its relative atomic mass?
- 1.50
- 1.01
- 1.00
- 2.00
-
Nitrogen-14 is 99.6 percent and nitrogen-15 is 0.4 percent. Which relative atomic mass is closest?
- 15.0
- 14.0
- 14.5
- 14.4
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