21:["$","div",null,{"className":"px-6 pb-6","children":[false,["$","div",null,{"className":"text-foreground leading-relaxed mb-6","children":["$","div",null,{"className":"question-html prose dark:prose-invert max-w-none","dangerouslySetInnerHTML":{"__html":"

Find the sum of $Z eff $ of last electron in Sc , Y , La and Ac according to Slater's rule.

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All have same $Z eff $ value = 3

"}}]}]]}]]}]]}]

Chemistry - PERIODIC TABLE Question with Solution | TestHub

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