Physical Science Review 4.1: Question Preview (ID: 14087)

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Which of the following is not a part of Dalton's atomic theory?
a) All elements are composed of atoms
b) Atoms of the same element are exactly alike
c) Atoms of the same element have different masses
d) Atoms of an element cannot change into atoms of a different element

What subatomic particles did Thomson discover?
a) electrons
b) protons
c) neutrons
d) protons, electrons, & neutrons

Atomic number is the number of?
a) protons
b) electrons
c) neutrons
d) morons

Rutherford did not discover that
a) Electrons move in a cloud-like region around the nucleus
b) Atoms are mostly empty space
c) Positive charge is in the nucleus of an atom
d) The nucleus is very dense

What subatomic particle did Chadwick discover?
a) Protons
b) Electrons
c) Neutrons
d) Slipons

Electrons have only specific amounts of energy according to
a) Bohr
b) Rutherford
c) Thomson
d) Chadwick

Electrons at a ____________ energy level will be found further from the ____________
a) higher; nucleus
b) lower; nucleus
c) higher; atom
d) lower; atom

What subatomic particles occur in equal amounts?
a) protons & electrons
b) protons & neutrons
c) electrons & neutrons
d) protons, electrons, & neutrons

1 amu is equal to the mass of 1
a) proton or electron
b) proton or neutron
c) electron or neutron
d) proton, electron, or neutron

Isotopes have the same number of ___________ but different number of ___________
a) protons; neutrons
b) protons; electrons
c) neutrons; protons
d) electrons; protons

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