Chemistry
Part of the periodic table is shown as :
| H | He | ||||||
|---|---|---|---|---|---|---|---|
| Li | Be | B | C | N | O | F | Ne |
| Na | Mg | Al | Si | P | S | Cl | Ar |
| K | Ca |
Based on the above table, name the :
(i) Element with duplet
(ii) Lightest alkali metal
(iii) Halogen of period 2
Periodic Table
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Answer
(i) He
(ii) Li
(iii) F
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