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How do you know that potassium, an alkali metal, is highly reactive?
unlikely to combine with other elements
it has one valence electron
They are located in the left most column of the periodic table
electrons will enter empty orbitals of the same energy level before pairing up in an orbital with an electron already preset
alkali metals
electrons in the same orbital must have opposite spins
Semiconductors/metalloids
unlikely to react with other elements
Which statement about alkali metals is correct?
unlikely to combine with other elements
it has one valence electron
They are located in the left most column of the periodic table
electrons will enter empty orbitals of the same energy level before pairing up in an orbital with an electron already preset
alkali metals
electrons in the same orbital must have opposite spins
Semiconductors/metalloids
unlikely to react with other elements
Which is a property of the noble gases in group 18?
unlikely to combine with other elements
it has one valence electron
They are located in the left most column of the periodic table
electrons will enter empty orbitals of the same energy level before pairing up in an orbital with an electron already preset
alkali metals
electrons in the same orbital must have opposite spins
Semiconductors/metalloids
unlikely to react with other elements
What is the Hund's rule?
unlikely to combine with other elements
it has one valence electron
They are located in the left most column of the periodic table
electrons will enter empty orbitals of the same energy level before pairing up in an orbital with an electron already preset
alkali metals
electrons in the same orbital must have opposite spins
Semiconductors/metalloids
unlikely to react with other elements
According to the Aufbau Principle
unlikely to combine with other elements
it has one valence electron
They are located in the left most column of the periodic table
electrons will enter empty orbitals of the same energy level before pairing up in an orbital with an electron already preset
alkali metals
electrons in the same orbital must have opposite spins
Semiconductors/metalloids
unlikely to react with other elements
Highly reactive elements that belong to Group 1
unlikely to combine with other elements
it has one valence electron
They are located in the left most column of the periodic table
electrons will enter empty orbitals of the same energy level before pairing up in an orbital with an electron already preset
alkali metals
electrons in the same orbital must have opposite spins
Semiconductors/metalloids
unlikely to react with other elements
Neon is used for filling neon signs. Like other noble elements it has a full octet of electrons which makes the gas
unlikely to combine with other elements
it has one valence electron
They are located in the left most column of the periodic table
electrons will enter empty orbitals of the same energy level before pairing up in an orbital with an electron already preset
alkali metals
electrons in the same orbital must have opposite spins
Semiconductors/metalloids
unlikely to react with other elements
elements that share properties of both metals and nonmetals are called?
unlikely to combine with other elements
it has one valence electron
They are located in the left most column of the periodic table
electrons will enter empty orbitals of the same energy level before pairing up in an orbital with an electron already preset
alkali metals
electrons in the same orbital must have opposite spins
Semiconductors/metalloids
unlikely to react with other elements
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