Chemistry, 29.01.2020 09:50 fangirl2837
Which element has the same number of energy levels as krypton (kr) and the same number of valence electrons as nitrogen (n)?
my answer is arsenic (as) is that right?
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Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg
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Which organism develops breathing organism develops breathing organs from pharyngeal arches? shark, spider, sea star, sea horse
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Which element has the same number of energy levels as krypton (kr) and the same number of valence el...
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