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