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प्रश्न
Give a reason
Physical properties of isotopes are different.
Give a reason for the following:
The physical properties of isotopes of the same element are not identical.
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उत्तर
Physical properties depend on atomic mass, and isotopes have different mass number, i.e. they have different number of neutrons. So, isotopes have different physical properties.
संबंधित प्रश्न
A Compound 'X' consists of only molecules. Hence 'X' will have
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 questions based on the table above:
What is the formula of the compound formed between X and Z.
State the following is a reduction reaction or oxidation reaction.
\[\ce{A^3+ + e- -> A^2+}\]
Name the following:
An element having valency 'zero'
Name the following:
The shell closest to the nucleus of an atom
Explain
Octet rule for the formation of sodium chloride
Write the formula of its (X)
sulphate
nitrate
phosphate
carbonate
hydroxide.
Give the orbital diagram of the following:
Magnesium chloride
Draw the electron distribution diagram for the formation of Carbon di oxide (CO2 ) molecule.
Match the following:
| 1. | Atomic bond | a. | Oxygen and hydrogen |
| 2. | Atoms with different electronegativities | b. | acceptor bond |
| 3. | An atom that accepts electron pair | c. | covalent bond |
| 4. | Rusting of iron | d. | donor atom |
| 5. | An atom that provides electron pair | e. | oxidation |
| f. | ionic bond |
