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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
Give electron dot diagram of the following:
nitrogen
Give electron dot diagram of the following:
methane
Complete the following:
| Sodium | Phosphorus | Carbon | |
| Formula of chloride | |||
| Nature of bonding | |||
| Physical state of chloride |
Element X is a metal with a valency 2; Y is a non-metal with a valency 3.
(a) Write an equation to show how Y forms as ion
(b) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.
Explain
Octet rule for the formation of sodium chloride
Draw orbit structure diagram of sodium chloride (NaCl).
Explain the following:
Carbon-12 and carbon-14 both show similar chemical properties.
Copy and complete the following table relating to the atomic structure of some elements:
| Element | Atomic Number | Mass Number | Number of protons | Number of Neutrons | Number of Electrons |
| Beryllium | 4 | 9 | |||
| Fluorine | 9 | 10 | |||
| Sodium | 12 | 11 | |||
| Aluminium | 27 | 13 | |||
| Phosphorus | 31 | 15 |
Draw the geometric atomic structure of the following atom showing the number of electrons, protons and neutrons in them:
\[\ce{^23_11Na}\]
How many electrons are required or released by each atom in carbon tetrachloride to attain the nearest noble gas configuration?
