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प्रश्न
Atomic number of a few elements are given below
10, 20, 7, 14
- Identify the elements
- Identify the Group number of these elements in the Periodic Table
- Identify the Periods of these elements in the Periodic Table
- What would be the electronic configuration for each of these elements?
- Determine the valency of these elements
उत्तर
- The given elements are neon, calcium, nitrogen and silicon.
- Neon - group number 18, calcium - group number 2, nitrogen - group number 15 and silicon - group number 14.
- Neon - 2nd period, calcium - 4th period, nitrogen - 2nd period and silicon - 3rd period.
- Neon - 2, 8
Calcium - 2, 8, 8, 2
nitrogen - 2, 7
silicon - 2, 8, 4 - Neon - valency is 0, calcium - valency is 2, nitrogen - valency is 3, silicon - valency is 4.
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संबंधित प्रश्न
Arrange the following as per the instruction given in the brackets:
Na, K, Li (Increasing atomic size)
Answer the following in respect of element `31/15 P `
Is it a reducing agent or oxidizing agent?
What do you understand by atomic size? State its unit?
Give the trends in atomic size on moving across the period left to right.
Which is greater in size Fe2+ or Fe3+?
With reference to the variation of properties in the Periodic Table, which of the following is generally true?
Atomic size increases from left to right across a period.
Supply the missing word from those in the brackets:
If an element has seven electrons in its outermost shell then it is likely to have the ______ (largest/ smallest) atomic size among all the elements in the same period.
Write scientific reason.
In same period, boron and oxygen elements have different atomic size.
Write information about the given atomic numbers in the table. 10, 20, 7.
| Atomic Number | Electronic configuration | Group | Period | Element |
| 10 | ||||
| 20 | ||||
| 7 |
An element with the largest atomic radius among the following is ______.
