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Question
Name the following metal:
A metal present in period 3, group 1 of the periodic table.
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Solution
Sodium
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Give two example of group 18 elements.
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Third Period.
Name and state the following with reference to the elements of the first three periods of the periodic table.
A covalent compound formed by an element in period 2 and a halogen.
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Group 13 to 18 : p block : : _______ : d block
A part of modern periodic table is given below. On its basis, answer the following questions:
| Group No. → | 1 | 2 | 13 | 14 | 15 | 16 | 17 | 18 |
| Period ↓ | ||||||||
| 2 | A | B | ||||||
| 3 | E | D | F | C |
Which of the element is a Metalloid?
