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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 protons and electrons
B
adding the neutrons 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
none of these are true
B
are nonmetals
C
are metals
D
have few valence electrons
3) The one particle in an atom that defines the atom's symbol is ...
A
hadron
B
proton
C
neutron
D
electron
4) What is the atomic mass of an atom that has 14 electrons 14protons and 16 neutrons?
A
30
B
14
C
28
D
2
5) These particles can be found in the nucleus of an atom
A
only protons
B
protons and neutrons
C
only electrons
D
protons and electrons
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
all of these
B
electrons
C
protons
D
neutrons
8) In Carbon-14, the 14 represents...
A
the mass of the atom
B
the atomic number
C
none of these
D
the charge of the atom
9) mass of an atom is measured in what units
A
ounces
B
atomic mass units
C
atomic grams
D
grams
10) an atom that has more electrons than protons will have...
A
a heavier mass
B
a lighter mass
C
a negative charge
D
a positive charge
*select an answer for all questions
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