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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
State differences between the properties of ionic compounds and covalent compounds.
Fill in the blanks.
The electrovalent bond or ionic bond is called as _____ bond
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.
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?
What do you think would be the observation of `alpha` particle scattering experiment if carried out on (i) heavy nucleus like platinum (ii) light nuclei like litheum.
Give reason
Argon does not react.
Draw orbit structure diagram of sodium chloride (NaCl).
How do atoms attain Noble gas electronic configuration?
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.
| Name of compound | Type of compound | |
| a. | Sodium chloride | ______ |
| b. | ______ | co-ordinate covalent compound |
| c. | Methane | ______ |
| d. | Fluorine molecule | ______ |
