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Which two particles each have a mass approximately equal to one atomic mass unit?
Rn
the same number of protons and a different number of neutrons
A bond is formed as energy is released.
proton and neutron
The atom loses an electron, and the radius decreases
charge
different elements chemically combined
atom in an excited state
As the electron in a hydrogen atom gains energy and moves from the first shell to the third shell, the hydrogen atom becomes an
Rn
the same number of protons and a different number of neutrons
A bond is formed as energy is released.
proton and neutron
The atom loses an electron, and the radius decreases
charge
different elements chemically combined
atom in an excited state
Given the equation representing a reaction: F + F → F2. Which statement describes the changes that occur during this reaction?
Rn
the same number of protons and a different number of neutrons
A bond is formed as energy is released.
proton and neutron
The atom loses an electron, and the radius decreases
charge
different elements chemically combined
atom in an excited state
Which phrase describes the composition of a compound?
Rn
the same number of protons and a different number of neutrons
A bond is formed as energy is released.
proton and neutron
The atom loses an electron, and the radius decreases
charge
different elements chemically combined
atom in an excited state
Which quantity is conserved during all chemical reactions?
Rn
the same number of protons and a different number of neutrons
A bond is formed as energy is released.
proton and neutron
The atom loses an electron, and the radius decreases
charge
different elements chemically combined
atom in an excited state
Which atom, in the ground state, has a stable valence electron configuration?
Rn
the same number of protons and a different number of neutrons
A bond is formed as energy is released.
proton and neutron
The atom loses an electron, and the radius decreases
charge
different elements chemically combined
atom in an excited state
Which phrase describes the protons and neutrons in atoms of two different isotopes of the same element?
Rn
the same number of protons and a different number of neutrons
A bond is formed as energy is released.
proton and neutron
The atom loses an electron, and the radius decreases
charge
different elements chemically combined
atom in an excited state
When a cesium atom becomes a positive ion, there is a change in electron configuration and radius. Which statement describes this change?
Rn
the same number of protons and a different number of neutrons
A bond is formed as energy is released.
proton and neutron
The atom loses an electron, and the radius decreases
charge
different elements chemically combined
atom in an excited state
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