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प्रश्न
Which of the following statements about the Modern periodic table is correct?
विकल्प
18 horizontal rows are known as Periods.
7 vertical columns are known as Periods.
18 vertical columns are known as groups.
7 horizontal rows are known as groups.
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उत्तर
18 vertical columns are known as groups.
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संबंधित प्रश्न
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Fill in the following blank with suitable word:
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What is the number of valence electrons in the atoms of first elements in a period?
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(a) number of valence electrons
(b) valency
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|
K |
L |
M |
|
2 |
8 |
6 |
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| Periods | Group 2 | Group 17 |
| 2 | ----- | A |
| 3 | B | ----- |
| 4 | ----- | C |
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Answer the following in respect of element \[\ce{_16^32S}\].
Give its electronic configuration.
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