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Isotopes
Test Description: This review is designed to reinforce the basics when considering istopes.
Instructions: Answer all questions to get your test result.
1) Every atom of an given element has the same number of what two subatomic particles?
A
electrons and neutrons
B
quarks and hadrons
C
electrons and protons
D
neutrons and quarks
2) Every atom of a given element does NOT have the same number of what subatomic particle?
A
electrons
B
quarks
C
neutrons
D
protons
3) Atoms of the same element that have different numbers numbers of neutrons in the nucleus AND different mass numbers are called:
A
isometric
B
isotopes
C
isothermic
D
isopropyl
4) All isotopes of a given element have the same:
A
atomic valence
B
atomic variable
C
atomic number
D
atomic mass
5) Even though isotopes of an element have the same atomic number, they have different:
A
mass numbers
B
mass proportions
C
mass totals
D
mass weights
6) The reason isotopes have the same atomic number but different mass numbers is they have different numbers of:
A
hadrons
B
protons
C
electrons
D
neutrons
7) Oxygen atoms have 8 protons in their nucleus, giving them an atomic number of:
A
4
B
8
C
12
D
16
8) Some oxygen isotopes have 8 protons and 8 neutrons in their nucleus, which gives them an atomic mass number of:
A
32
B
16
C
24
D
8
9) What is the atomic mass number of an oxygen (atomic number 8) isotope that has 9 neutrons?
A
9
B
8
C
17
D
16
10) What is the atomic mass number of an oxygen (atomic number 8) isotope that has 10 neutrons?
A
8
B
18
C
16
D
10
*select an answer for all questions
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