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WorksheetsQuiz 3 Review - Atoms and Elements
Total questions: 30
Worksheet time: 31mins
Which of these are the smallest?
Cells
Atoms
Number of protons and neutrons
atomic number
atomic mass
noble gases
Non-metals
atomic number
gas at room temperature, low boiling point
a subatomic particle that has a negative charge
number or protons and neutrons
the number of protons in the nucleus of an atom
What type of charge does a proton have?
negative
postive
no charge/neutral
What type of charge does an electron have?
positive
no charge/neutral
negative
What is the center of the atom called?
nucleus
electron cloud
energy level
neutron
What two sub-atomic particles belong in the nucleus of an atom?
electrons and protons
protons and neutrons
electrons and neutrons
How do you find the atomic number?
by the number of electrons
by the number of protons
by the number of neutrons
The number of neutrons in an atom =
protons - neutrons
mass number - protons
protons - neutrons
mass number - electrons
What type of charge does a neutron have?
negative
positive
no charge/neutral
What is the atomic number of this Carbon atom
6
8
14
12
What is the mass number of this Carbon atom?
8
12
6
15
What is the element symbol?
Argon
Ar
18
39.948
What is the element name?
Argon
Neon
18
Ar
The mass number of an atom =
protons + neutrons
protons - neutrons
electrons - neutrons
neutrons + electrons
The number 18 represents the
Atomic number
Neutrons
Element Name
Element symbol
The central region of an atom where its neutrons and protons are is its
nucleus
electron cloud
core
center
What does the 1.00794 stand for?
Hydrogen
atomic number
atomic mass
atomic explosion
An atom with atomic number 6 would have how many protons
6
12
3
cannot be determined
What is the number of protons that the element in this image contain?
14
7
15
18
How many neutrons are in the atom "K"?
7
2
39
20
Why is the overall charge of an atom neutral (0)?
They have the same number of protons and neutrons.
They have the same number of protons and electrons.
They have the same number of electrons and neutrons.
