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प्रश्न
State the type of bonding in the following molecules.
Hydrogen chloride
उत्तर
Polar covalent bond
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संबंधित प्रश्न
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is a non-metal.
The following table shows the electronic configuration of the elements W, X, Y, Z:
|
Element |
W |
X |
Y |
Z |
|
Electronic |
2, 8, 1 |
2, 8, 7 |
2, 5 |
1 |
Answer the following question based on the table above:
What is the formula of the compound formed between W and X.
Why do `""_17^35"CI"` and `""_17^37"CI"` have the same chemical properties? In what respect do these atoms differ?
Give reason
`""_17^35"CI"` and `""_17^37"CI"` do not differ in their chemical reactions.
State the type of bond between Y and Z and give its molecular formula.
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.
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 |
The element that would form cation due to the loss of electrons during the chemical reaction is ______.
The valency of noble gases is ______.
Complete the following table:
| Atoms | Atomic number | Electron distribution | |
| 1. | O | 8 | ______ |
| 2. | N | ______ | ______ |
| 3. | ______ | 17 | ______ |
| 4. | ______ | ______ | 2,8,2 |
