Identifythe groupand valencyof the elementhavingatomicnumber119. Alsopredicttheoutermostelectronicconfigurationand writethe general formula ofitsoxide .

Identifythe groupand valencyof the elementhavingatomicnumber119. Alsop

1.	Identifythe groupand valencyof the elementhavingatomicnumber119. Alsopredicttheoutermostelectronicconfigurationand writethe general formula ofitsoxide .
Answer» SOLUTION :The presentset up ofthe Longformof the periodictablecanaccommodateat themaximum118elementselectron will enter 8S-orbital.As suchits outermost electronicconfigurationwill be `8s^(1)`.Sinceit has onlyoneelectronin the valenceshell i.e.,8sthereforeits valencewill be 1 andit will LIE in group 1 ALONG withalkalimetals of theformulaof itsoxidewill be `M_(2)O`whereM representsthe element.