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Which elements are present in the mixture?
G and L
atomic radius
88%
2-7-8
two electrons in the outermost shell
1
O^2-
20. mol
As the elements in Period 2 of the Periodic Table are considered in order from left to right, which property generally decreases?
G and L
atomic radius
88%
2-7-8
two electrons in the outermost shell
1
O^2-
20. mol
What is the percent composition by mass of nitrogen in the compound N2H4 (gram-formula mass = 32 g/mol)?
G and L
atomic radius
88%
2-7-8
two electrons in the outermost shell
1
O^2-
20. mol
How many moles of carbon dioxide are produced when 5.0 moles of butane react completely?
G and L
atomic radius
88%
2-7-8
two electrons in the outermost shell
1
O^2-
20. mol
Magnesium and calcium have similar chemical properties because their atoms in the ground state have
G and L
atomic radius
88%
2-7-8
two electrons in the outermost shell
1
O^2-
20. mol
Which electron confi guration represents an atom of chlorine in an excited state?
G and L
atomic radius
88%
2-7-8
two electrons in the outermost shell
1
O^2-
20. mol
Which ion in the ground state has the same electron configuration as an atom of neon in the ground state?
G and L
atomic radius
88%
2-7-8
two electrons in the outermost shell
1
O^2-
20. mol
Which particle model diagram represents xenon at STP?
G and L
atomic radius
88%
2-7-8
two electrons in the outermost shell
1
O^2-
20. mol
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