an atom of an element has 7 electrons in the outermost L shell what will be atomic number? what will valency? draw a schematic diagram using bhor model
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It has 7 electrons in Lshell qhich os ots outer most shell. K has 2 electrons ( because K shell can hold max. 2 electrons)and L has 7 electrons so total no. Of electrons are 9 atomic no. Is 9 element is fluorine valency is 1 since L shell can hold max.8 electrons and the element has 7 electrons so valency is 1
Bohr 's atomic model
K shell 2 and L shell 7
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The atomic no. Is 9.Its valency is -1 as it gain one electron toachieve inert gas configuration.
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