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प्रश्न
Number of valence electrons in carbon is ______.
विकल्प
2
4
3
5
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उत्तर
Number of valence electrons in carbon is 4
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संबंधित प्रश्न
Fill in the blank.
___________ single covalent bonds are formed between the carbon and chlorine atoms.
Element X is a metal with a valency 2. Element Y is a non metal with a valency 3.
(a) Write equations to show how X and Y form ions.
(b) If Y is a diatomic gas, write the equation for the direct combination of X and Y to form a compound.
Why do they exist as monoatoms in molecules?
Match the atomic numbers 4, 14, 8, 15 and 19 with each of the following:
- A solid non-metal of valency 3.
- A gas of valency 2.
- A metal of valency 1.
- A non-metal of valency 4.
Give reason
Argon does not react.
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of oxidation.
Draw the geometric atomic structure of the following atom showing the number of electrons, protons and neutrons in them:
\[\ce{^31_15P}\]
______ theory explains the formation of molecules.
Spot the error/correct the wrong statement:
In the formation of compounds, the inner shell electrons of an atom involved in bonding.
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is chemically inert.
