Chemistry Review 2
Quiz by Ann Marie MacDonald
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- Q1
Which statement describes the earliest model of the atom?
Electrons in an atom have wave-like properties.
An atom is an indivisible hard sphere.
Electrons are negative particles in an atom.
An atom has a small, dense nucleus.
30s - Q2
In all atoms of bismuth, the number of electrons must equal the
number of neutrons
number of protons
sum of the number of neutrons and protons
difference between the number of neutrons and protons
30s - Q3
Which symbol represents a particle that has a mass approximately equal to the mass of a neutron?
α
β-
p
β+
30s - Q4
An orbital is a region in an atom where there is a high probability of finding
a positron
an electron
a neutron
an alpha particle
30s - Q5
Which electron shell in an atom of calcium in the ground state has an electron with the greatest amount of energy?
3
2
1
4
30s