CBSE Class 10 Answered
Why elements a re arrange in the form of periodic table ?
Why hydrogen is placed in first group and first period ?
Asked by bhoiipsita6 | 10 Dec, 2018, 21:25: PM
Expert Answer
1) Why elements are arranged in the form of a periodic table?
Reasons for Classification
- Helps in studying elements in organised manner
- Helps in correlating the properties of elements
- Helps in defining the relationship of one element with another
2) Why hydrogen is placed in the first group and first period?
Because hydrogen shows properties of both alkali metals and halogens as its electronic configuration resembles with both.
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Answered by Varsha | 11 Dec, 2018, 11:18: AM
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