WorksheetsCH4 Vocabulary Quiz 2021-22
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
a negatively charged subatomic particle
a)
electron
b)
proton
c)
neutron
2.
a positively charged subatomic particle found in the nucleus of an atom
a)
electron
b)
proton
c)
neutron
3.
a stream of electrons produced at the negative electrode (cathode) of a tube containing a gas at low pressure
a)
cathode ray
b)
isotope
c)
AMU
4.
a subatomic particle with no charge, found in the nucleus of an atom
a)
electron
b)
proton
c)
neutron
5.
a unit of mass equal to one twelfth the mass of a carbon-12 atom
a)
Atomic mass
b)
Mass number
c)
Atomic mass unit
6.
atoms of the same element that have the same atomic number but different atomic masses due to a different number of neutrons
a)
Electron
b)
Isotope
c)
Proton
7.
the first theory to relate chemical changes to events at the atomic level
a)
Dalton’s Atomic
b)
Mass number
c)
Atomic Mass
8.
the number of protons in the nucleus of an atom of an element
a)
atomic mass unit
b)
atomic mass
c)
atomic number
9.
the smallest particle of an element that retains its identity in a chemical reaction
a)
electron
b)
nucleus
c)
atom
10.
the tiny, dense central portion of an atom, composed of protons and neutrons
a)
electron
b)
nucleus
c)
atom
11.
the total number of protons and neutrons in the nucleus of an atom
a)
nucleus
b)
mass number
c)
atomic number
12.
the weighted average of the masses of the isotopes of an element
a)
atomic mass unit
b)
atomic mass
c)
atomic number
100 %
