
Physical Science: E-Exam DL
Authored by Melissa Mahler
English
9th Grade

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12 questions
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1.
MATCH QUESTION
30 sec • 1 pt
Match the following terms with their definitions:
An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
Atomic Number
A pure substance consisting only of one type of atom.
Mass Number
Atoms of the same element that have different numbers of neutrons.
Element
The total number of protons and neutrons in an atom's nucleus.
Ion
The number of protons in the nucleus of an atom.
Isotope
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fill in the blank: The atomic number of an element is the number of ______ in the nucleus of an atom.
protons
neutrons
electrons
atoms
3.
MATCH QUESTION
30 sec • 1 pt
Match the following terms with their definitions:
The weighted average mass of an atom's isotopes.
Nucleus
A positively charged particle found in the nucleus of an atom.
Proton
A neutral particle found in the nucleus of an atom.
Atomic Mass
The central part of an atom, containing protons and neutrons.
Electron
A negatively charged particle that orbits the nucleus of an atom.
Neutron
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fill in the blank: The mass number of an atom is the sum of the number of ______ and ______ in the nucleus.
protons and neutrons
electrons and protons
neutrons and electrons
protons and electrons
5.
MATCH QUESTION
30 sec • 1 pt
Match the following terms with their definitions:
The distance from the nucleus to the outermost shell of an atom.
Ionization Energy
Electrons in the outermost shell of an atom.
Period
A horizontal row in the periodic table.
Valence Electrons
The energy required to remove an electron from an atom.
Group
A vertical column in the periodic table.
Atomic Radius
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fill in the blank: The atomic radius of an element is the distance from the nucleus to the ______ of the electron cloud.
outer edge
center
middle
core
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Complete the following: Element: Nitrogen Atomic Number: 7 Mass Number: 14 Protons = ______ Electrons = ______ Neutrons = ______
Protons = 7, Electrons = 7, Neutrons = 7
Protons = 7, Electrons = 8, Neutrons = 6
Protons = 6, Electrons = 6, Neutrons = 8
Protons = 8, Electrons = 7, Neutrons = 6
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