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WorksheetsUnit 4:Atoms
Total questions: 20
Worksheet time: 5hrs 0mins
The atom is...
The basic building block of matter
Unimportant
Important in creating protons
I don't know
What are atoms composed of?
Mass, oxygen, matter
Protons, neutrons, electrons
Protons, mass, nuclei
Electrons, matter, neutrons
_____ orbit the atomic nucleus.
Protons
Matter
Electrons
Atoms
Protons have ____ charge.
no
a negative
a neutral
a positive
Electrons have ____ charge.
no
a negative
a positive
a neutral
What does the atomic number equal?
The number of electrons
The number of protons
The number of neutrons
The number of atoms.
An atomic model is NOT a reliable representation of an atom.
False
True
What is the nature of an element determined by?
The number of electrons
The number of neutrons
Nothing
The number of protons
What is the atomic number of this element?
6
12.011
C
None of the above
What is the atomic mass of this element?
6
12.011
C
None of the above
What is the atomic mass the sum of?
Only protons
Only electrons
Protons and electrons
Protons and neutrons
_______ hold the nucleus together.
Atoms
Neutrons
Protons
Electrons
Nuclei can NOT decay and give off radiation
True
False
Atoms undergoing radioactive decay______
has no energy
releases energy
gains energy
maintains the same energy
Radioactive decay does release heat
True
False
Radioactive decay causes new what to form?
Isotopes
Nuclei
Atoms
Elements
Isotopes are ______ and______ radiation
unstable, does not give off
stable, gives off
stable, does not give off
unstable, gives off
Radiation is everywhere
False
True
Nuclear power comes from_____ and _______
radiation
nucleation
fusion
fission
Does this photo show nuclear fusion or fission?
Fusion
Fission
Neither
