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Over 99% of the mass of an atom is located
neutrons
False, it is located there only located in group 1 because it has one valence electron.
in the nucleus.
liquid at room temperature.
Oxygen
20
They are all non-reactive gases.
Halogen
The word family implies that the elements in a family have like properties. What property do the elements of the noble gas family all share?
neutrons
False, it is located there only located in group 1 because it has one valence electron.
in the nucleus.
liquid at room temperature.
Oxygen
20
They are all non-reactive gases.
Halogen
To find the mass of an atom you add the protons to the ______________ in the nucleus of the atom.
neutrons
False, it is located there only located in group 1 because it has one valence electron.
in the nucleus.
liquid at room temperature.
Oxygen
20
They are all non-reactive gases.
Halogen
Most metals are NOT
neutrons
False, it is located there only located in group 1 because it has one valence electron.
in the nucleus.
liquid at room temperature.
Oxygen
20
They are all non-reactive gases.
Halogen
Potassium has _____ neutrons.
neutrons
False, it is located there only located in group 1 because it has one valence electron.
in the nucleus.
liquid at room temperature.
Oxygen
20
They are all non-reactive gases.
Halogen
Flourine is located in the _________ family.
neutrons
False, it is located there only located in group 1 because it has one valence electron.
in the nucleus.
liquid at room temperature.
Oxygen
20
They are all non-reactive gases.
Halogen
Selenium can be found in the ________ family.
neutrons
False, it is located there only located in group 1 because it has one valence electron.
in the nucleus.
liquid at room temperature.
Oxygen
20
They are all non-reactive gases.
Halogen
True or false: Hydrogen is an Alikali Metal.
neutrons
False, it is located there only located in group 1 because it has one valence electron.
in the nucleus.
liquid at room temperature.
Oxygen
20
They are all non-reactive gases.
Halogen
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