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प्रश्न
Explain
Duplet rule for the formation of hydrogen
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उत्तर
Elements tend to combine with one another to attain the stable electronic configuration of the nearest inert gas.
Hydrogen
A hydrogen atom has one electron in the valence shell which shares with another hydrogen atom having one electron to complete its duplet state, i.e. two electrons in the valence shell and resulting in the formation of hydrogen.
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संबंधित प्रश्न
Give electron dot diagram of the following:
methane
Separate the following compounds into three categories - ionic, polar and covalent compounds; N2, NH4Cl, NH3, NO, NH4NO3, NCl3.
State the type of bonding in the following molecule.
Calcium oxide
Give reason
Argon does not react.
Complete the following table relating to the atomic structure of some elements.
|
Element Symbol |
Atomic Number |
Mass Number |
Numbers of neutrons |
Number of Electrons |
Number of Protons |
|
Li |
3 |
6 |
|
|
|
|
Cl |
17 |
|
20 |
|
|
|
Na |
|
|
12 |
|
11 |
|
Al |
|
27 |
|
|
13 |
|
S |
|
32 |
16 |
|
|
Compare :
Sodium atom and sodium ion
Give the orbital diagram of the following:
Nitrogen
Identify the following reaction as either oxidation or reduction:
Zn → Zn2+ + 2e-
Five atoms are labelled V to Z
| Atoms | Mass Number | Atomic Number |
| V | 40 | 20 |
| W | 19 | 9 |
| X | 7 | 3 |
| Y | 16 | 8 |
| Z | 14 | 7 |
- Which one of these atoms
(1) contains 7 protons;
(2) has an electronic configuration 2, 7? - Write down the formula of the compound formed by atoms X and Y.
How do atoms attain Noble gas electronic configuration?
