A metal with one electron in N shell
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2
Explanation:
The n = 1 shell is completely filled in a helium atom. The next atom is the alkali metal lithium with an atomic number of 3. The first two electrons in lithium fill the 1s orbital and have the same sets of four quantum numbers as the two electrons in helium
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0
Answer:
19
patassium. patassium.
Explanation:
patassium patassiumpatassium
patassium patassium patassium patassium
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