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Ch.2 Atomic Vocab
Test Description: Atoms galore
Instructions: Answer all questions to get your test result.
1) Smallest particle of matter
A
compound
B
mixture
C
element
D
atom
2) negatively charged particle
A
proton
B
nucleus
C
neutron
D
electron
3) where you will find an electron
A
electron cloud
B
electron shell
C
at home watching Netflix
D
in the nucleus
4) neutral charged particle, found in the nucleus
A
proton
B
nucleus
C
electron
D
neutron
5) center of atom, positive charge, most of mass is here
A
proton
B
nucleus
C
neutron
D
atom
6) positive charged particle, found in nucleus
A
neutron
B
electron
C
nucleus
D
proton
7) number of protons in an element, the whole number on the periodic table
A
atomic number
B
avg.atomic mass
C
isotope
D
atomic mass
8) average mass of an element’s isotopes
A
isotope
B
mass number
C
atomic number
D
avg. atomic mass
9) charged atom formed by gaining OR losing electrons
A
electron
B
isotope
C
nucleus
D
ion
10) same element, different mass = different # of neutrons.
A
ion
B
element
C
isotope
D
mass number
11) number of protons+neutrons in an element. the number that has decimals on the periodic table
A
average atomic mass
B
mass number
C
isotope
D
atomic number
12) process that occurs when an unstable atomic nucleus changes into another more stable nucleus by emitting radiation
A
nuclear decay
B
isotope
C
neutron
D
positive
13) describes elements that spontaneously emit radiation
A
radioactive decay
B
radioactivity
C
catchy song by Imagine Dragons
D
nuclear
14) an atom with a positive charged, formed by LOSING an ELECTRON
A
anion
B
cation
C
isotope
D
ion
15) an atom with a NEGATIVE charge, formed by gaining an electron
A
ion
B
isotope
C
anion
D
cation
16) what particle do we change if we want to make a new element?
A
electrons
B
protons
C
neutrons
D
atomic number
17) which of these sub-atomic particles is NOT in the nucleus?
A
neutrons
B
electrons
C
BOILER UP!
D
protons
18) What is the overall charge of an element?
A
negative
B
neutral
C
positive
*select an answer for all questions
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