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Atoms
Test Description: Atoms review
Instructions: Answer all questions to get your test result.
1) Which part of the atom has a + charge?
A
Electron
B
Proton
C
Neutron
D
Brain
2) What two parts make up the mass of the atom?
A
The electron orbiting the nucleus
B
Type of element
C
The neutron and proton inside the nucleus
3) If an atom loses a neutron, what happens?
A
Its mass is lowered, but it is still the same element.
B
Its mass is increased, but it is still the same element.
C
Its mass is increased, but it is NOT the same element.
D
Its mass is lowered, but it is NOT the same element
4) If a substance cannot be broken down chemically into a simpler substance, what is it?
A
Proton
B
Molecule
C
Element
D
Electron
5) Which term describes atoms with different numbers of neutrons?
A
Nucleus
B
Isotope
C
Matter
D
Element
6) Protons and neutrons are composed of?
A
Mass
B
Electrons
C
Neutron
D
Quark
7) What is half life?
A
the amount of time it takes for half of a radioactive substance to decay
B
Parent Isotope
C
Daughter Isotope
D
Your mom
8) What is nuclear fission?
A
the joining of the atomic nucleus into parts
B
Where Homer Simpson works
C
the splitting of the atomic nucleus into parts
9) How do protons, neutrons, and electrons determine the properties of an atom?
A
atomic number and weight
B
how reactive it is
C
All of the above
D
weight
10) When does radioactive decay occur?
A
when the nucleus decays
B
When the protons decay
C
When the electrons decay
D
When you add a neutron
*select an answer for all questions
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