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प्रश्न
Write Lewis symbols for the following atoms and ions H and H–.
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उत्तर १
H and H–
The number of valence electrons in hydrogen is 1.
The Lewis dot symbol of hydrogen (H) is 
The uninegative charge infers that there will be one electron more in addition to the one valence electron. Hence, the Lewis dot symbol is 
उत्तर २
`""_1"H" = 1` ∴ Lewis symbol = 
संबंधित प्रश्न
Write Lewis symbols for the following atoms and ions: Al and Al3+.
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K and S
Use Lewis symbols to show electron transfer between the following atoms to form cations and anions:
Ca and O
Select and write the most appropriate alternatives from the given choices.
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Draw Lewis electron dot structure of C2H4
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Explain in brief with one example of a covalent bond
Explain in brief with one example of coordinate bond
Which of the following molecules has a central atom with complete octet?
Which of the following is INCORRECT with respect to enthalpy?
In which of the following, the central atom does NOT have lone pair(s) of electrons?
What is the formal charge on hydrogen atom in water molecule?
Match the items given in Column I with examples given in Column II.
| Column I | Column II |
| (i) Hydrogen bond | (a) \[\ce{C}\] |
| (ii) Resonance | (b) \[\ce{LiF}\] |
| (iii) Ionic solid | (c) \[\ce{H2}\] |
| (iv) Covalent solid | (d) \[\ce{HF}\] |
| (e) \[\ce{O3}\] |
Assertion (A): Sodium chloride formed by the action of chlorine gas on sodium metal is a stable compound.
Reason (R): This is because sodium and chloride ions acquire octet in sodium chloride formation.
