Atoms, Ions, Isotopes, avg. atomic mass TEST review
Authored by Monica Derickson
Science
7th Grade
NGSS covered
Used 8+ times
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24 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Atoms of the same element with different numbers of neutrons are called
ions
metalloids
metals
isotopes
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A certain atom has 26 protons, 26 electrons, 30 neutrons. Its mass number is ________________.
26
30
52
56
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which particle is not in the nucleus?
proton
electron
quark
neutron
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which particle has a negative charge?
protons
neutrons
quarks
electrons
Tags
NGSS.MS-PS2-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When an atom has two more electrons than protons, it has a charge of what?
+2
-2
+1
-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which particle is the identifier for the atom?
proton
neutron
isotope
ion
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the Isotope "Uranium-235", what does "235" stand for?
number of electrons
mass number
number of protons
atomic number
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