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An element X has atomic number 19: i)write electronic configuration ii) to which of modern periodic table it belongs? how to deicide its position iii)

state formula and nature of compound formed by element X.


Electronic configuration-2,8,8,1
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Ec - 2,8,8,1
it belong to 1 group 4 period .
in a group its position is 4 as in a group the no of outermost shell increase by one shell with same valency.in a period it is according to valency.
the compound formed is ionic  
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