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Question

The properties of an element are determined largely by the electrons in its __________ shell.

A
outermost
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B
penautimate
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C
anti penultimate
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D
None of the above
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Solution

The correct option is A outermost
The modern periodic table is based on the electronic configuration of the elements. The properties of an element are determined largely by the electrons in its outermost or valence shell. Valence electrons interact with other atoms and take part in all chemical reactions, while inner shell electrons have little influence on the properties of elements.
Hence option A is correct.

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