
Atomic Structure Quiz A level
Passage
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
Wayground Content
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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relative mass of a neutron?
1/1800
0
1
-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relative charge of an electron?
+1
0
1/1800
-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the number of neutrons in an atom calculated?
A + Z
A - Z
Z - A
Z / A
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the atomic number (Z) represent?
The total number of protons and neutrons in the atom
The number of neutrons in the nucleus
The number of protons in the nucleus
The mass number of the atom
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relative isotopic mass?
The average mass of a molecule compared to one twelfth of the mass of one atom of carbon-12
The mass of one isotope compared to one twelfth of the mass of one atom of carbon-12
The weighted mean mass of one atom compared to one twelfth of the mass of one atom of carbon-12
The sum of the masses of the protons and neutrons in the atom
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which formula represents the calculation of the Relative Atomic Mass (R.A.M) of an element?
R.A.M = Σ (isotopic mass × abundance) / 100
R.A.M = Σ (isotopic mass × percentage abundance) / total relative abundance
R.A.M = Σ (isotopic mass × relative abundance)
R.A.M = (isotopic mass × percentage abundance) / 100
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relative atomic mass (R.A.M) of tellurium given the following abundance data: 124-Te relative abundance 2, 126-Te relative abundance 4, 128-Te relative abundance 7, 130-Te relative abundance 6?
127.8
128.2
126.4
129.1
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