Atomic Structure and Element Assignment
Authored by Sarah Johnson
Chemistry
9th Grade
NGSS covered
Used 1+ times
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50 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Determine the atomic number, mass number, number of protons, neutrons, and electrons for a neutral atom of potassium-39.
Atomic # 19
Mass # 39
Protons 19
Neutrons 20
Electrons 19
Atomic # 19
Mass # 39.098
Protons 19
Neutrons 19
Electrons 19
Atomic # 39
Mass # 19
Protons 39
Neutrons 19
Electrons 39
Atomic # 19
Mass # 39.098
Protons 19
Neutrons 20
Electrons 19
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Isotopes have the same number of ____, but different number of ____.
neutrons; protons
protons; electrons
protons + electrons; neutrons
electrons; protons
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
In a neutral atom what two subatomic particles are equal?
Neutrons + Protons
Electrons + Neutrons
Protons + Electrons
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Most of the mass in an atom is made up of _____________________?
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Which subatomic particle determines the identity of an element?
protons
neutrons
electrons
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Which subatomic particle determines the charge of an atom?
protons
neutrons
electrons
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the number of protons that the element in this image contain?
Tags
NGSS.MS-PS1-1
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