Answer:
Francium (Fr)
Explanation:
Looking at the periodic table, Francium has 7 energy levels as it is in the 7th Period and is in the 1st Group (meaning it has one electron in the outermost shell) which suggests that it has one valence electron.
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Seafloor spreading and rifts hopefully that helpful
Answer:
NCL3
Explanation:
Nitrogen trichloride is an ionic compound
it is an inorganic compound known as halogen nitrides