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प्रश्न
Name the following:
The shell closest to the nucleus of an atom
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उत्तर १
K
उत्तर २
The shell nearest to the nucleus i.e. shell 1 or K can have a maximum of 2 electrons. It has a minimum amount of energy
संबंधित प्रश्न
What is an α (alpha) particle?
Name the following:
Two atoms having the same number of protons and electrons but different number of neutrons.
Choose the correct option
Which of the following is the correct electronic configuration of potassium?
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.
Match the following:
| 1. | Monoatomic gaseous atom | a. | Electrovalent bond |
| 2. | Octet rule | b. | Benzene |
| 3. | Ionic bond | c. | Water |
| 4. | Non-polar solvent | d. | Electronic theory of valence |
| 5. | Polar solvent | e. | Noble gases |
Write the basic concept of Kossel – Lewis theory.
Complete the following table:
| a. | Dativebond | ______ |
| b. | CaH2 → Ca+H2 | ______ |
| c. | ______ | Reduction |
| d. | ______ | Redox reaction |
The one which is composed of all the three kinds of bond.[ionic, covalent and coordinate bond]
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is chemically inert.
