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ATOMS Review 1
Test Description: Atomic Structure
Instructions: Answer all questions to get your test result.
1) Atomic mass is found by...
A
adding the neutrons and electrons
B
adding the protons and electrons
C
looking at the number of protons
D
adding the protons and neutrons
2) Atoms to the right of the stairsteps on the periodic table ...
A
are nonmetals
B
are metals
C
have few valence electrons
D
none of these are true
3) The one particle in an atom that defines the atom's symbol is ...
A
neutron
B
proton
C
hadron
D
electron
4) What is the atomic mass of an atom that has 14 electrons 14protons and 16 neutrons?
A
28
B
30
C
14
D
2
5) These particles can be found in the nucleus of an atom
A
only electrons
B
protons and neutrons
C
protons and electrons
D
only protons
6) The charge of an atom comes from having more or less ____ than ____
A
electrons ; protons
B
neutrons ; protons
C
protons ; electrons
D
protons ; neutrons
7) An isotope has an unequal amount of protons and
A
neutrons
B
protons
C
all of these
D
electrons
8) In Carbon-14, the 14 represents...
A
the charge of the atom
B
the atomic number
C
none of these
D
the mass of the atom
9) mass of an atom is measured in what units
A
ounces
B
atomic grams
C
grams
D
atomic mass units
10) an atom that has more electrons than protons will have...
A
a lighter mass
B
a positive charge
C
a negative charge
D
a heavier mass
*select an answer for all questions
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