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प्रश्न
What is meant by a chemical bond?
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उत्तर
A chemical bond may be defined as the force of attraction between the two atoms that bind them together as a unit called a molecule.
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संबंधित प्रश्न
Give electron dot diagram of the following:
nitrogen
How many atoms of each kind are present in the following molecules: calcium oxide, chlorine, water, carbon tetrachloride?
How many electrons are required by each atom mentioned in (a) to attain the nearest noble gas configuration?
Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one forms a cation?
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.
State the type of bonding in the following molecules.
Hydrogen chloride
Draw the geometric atomic structure of the three isotopes of hydrogen and the two isotopes of chlorine.
An atom X with atomic number 20 combines with atom Y with atomic number 8. Draw the dot structure for the formation of the molecule XY.
The valency of noble gases is ______.
| Name of compound | Type of compound | |
| a. | Sodium chloride | ______ |
| b. | ______ | co-ordinate covalent compound |
| c. | Methane | ______ |
| d. | Fluorine molecule | ______ |
How many electrons are required or released by each atom in carbon tetrachloride to attain the nearest noble gas configuration?
