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प्रश्न
Which element has a total of two shells, with three electrons in its valence shell?
उत्तर १
Boron
उत्तर २
Boron is an element with a total of two shells, with three electrons in its valence shell. Its atomic number is 5 and electronic configuration is 2,3.
Electronic configuration:- Shells: K L
Electrons arranged: 2 3
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संबंधित प्रश्न
Elements in the same group show the same valency. Give scientific reason.
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(b) The sizes of their atoms
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(e) The formula of their oxides
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(iii) Draw the electron-dot structure of the compound formed and state the nature of the bond formed between the two elements ?
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Similar electronic configuration is repeated after intervals of 2, 8, 8, 18 and 32.
Copy and complete the following sentence choosing the correct word or words from those given below, at the end of the sentence:
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