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Question : 26
Total: 30
The position of certain elements in the Modern Periodic Table are shown below.**
Using the above table answer the following questions giving reasons in each case :
(i) Which element will form only covalent compounds?
(ii) Which element is a non-metal with valency 2 ?
(iii) Which element is a metal with valency 2 ?
(iv) Out ofH , C F
(v) To which family doesH , C F
OR
Define atomic size. Give its unit of measurement. In the modern periodic table what trend is observed in the atomic radius in a group and a period and why is it so ?
| Group → ↓ Period | 1 | 2 | 3 to 12 | 13 | 14 | 15 | 16 | 17 | 18 |
|---|---|---|---|---|---|---|---|---|---|
| 1 | G | H | |||||||
| 2 | A | I | B | C | |||||
| 3 | D | E | F |
Using the above table answer the following questions giving reasons in each case :
(i) Which element will form only covalent compounds?
(ii) Which element is a non-metal with valency 2 ?
(iii) Which element is a metal with valency 2 ?
(iv) Out of
(v) To which family does
OR
Define atomic size. Give its unit of measurement. In the modern periodic table what trend is observed in the atomic radius in a group and a period and why is it so ?
Solution:
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