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प्रश्न
Name the type of elements which have one electron short of octet.
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उत्तर
Halogens
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संबंधित प्रश्न
Fill in the following blank with suitable word:
The basis for modern periodic table is ...............
What is the fundamental difference in the electron configurations between the group 1 and group 2 elements?
What is meant in the periodic table by a period?
Give the symbol and valency of the following element and radical.
Bicarbonate
What are the elements.
The modern periodic table is divided into which blocks?
Write an Explanation.
Period
Position of A, B and C three elements is given in the table from the modern periodic table. Answer the following questions.
| Periods | Group 2 | Group 17 |
| 2 | ----- | A |
| 3 | B | ----- |
| 4 | ----- | C |
- What is A element metal or nonmetal?
- Which is the outermost orbit of element B?
- Identify C element and it's physical state.
Explain the position of hydrogen in the periodic table.
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?
