Question

$write \: down \: the \: electronic \\ configuration \: of \: \\ element atom no :- 1to20?$
solve fast please






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Answer 1

Answer:

$5 { \sqrt{ \sqrt[1235.3 \div < | \sqrt[ {jtajm}^{?} ]{?} | ]{?} } }^{?} \times \frac{?}{?}$