Atomic Structure and Average Atomic Mass
Authored by Lisa Thompson
Science
8th Grade
NGSS covered
Used 3+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many protons does an aluminum atom have?
27
14
40
13
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many electrons does a sodium atom have?
23
11
12
34
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Complete the missing label on the diagram.
Neutron
Centre
Nucleus
Sub atomic particle
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Atoms of the same element must always have the same number of _________
electrons
neutrons
isotopes
protons
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The _________ of an element equals the number of protons in an atom of that element.
mass number
atomic weight
atomic number
isotopes
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What element has 9 protons, 9 electrons, and 10 neutrons?
nitrogen
oxygen
fluorine
neon
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the correct number of subatomic particles of a phosphorous atom with a mass of 31?
p# - 15, n# = 15, e# = 15
p# - 15, n# = 16, e# = 15
p# - 15, n# = 15, e# = 16
p# - 16, n# = 15, e# = 15
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