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प्रश्न
Choose the correct option
Which of the following is the correct electronic configuration of potassium?
पर्याय
2,8,9
8,2,9
2,8,8,1
1,2,8,8
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उत्तर
2,8,8,1
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संबंधित प्रश्न
Complete the following:
| Sodium | Phosphorus | Carbon | |
| Formula of chloride | |||
| Nature of bonding | |||
| Physical state of chloride |
Match the column A with Column B.
|
Column A |
Column B |
|
(i) Sodium chloride (ii) Ammonium ion (iii) Carbon tetrachloride |
Covalent bond Ionic bond Covalent and coordinate bond |
What is an α (alpha) particle?
Why do `""_17^35"CI"` and `""_17^37"CI"` have the same chemical properties? In what respect do these atoms differ?
Explain fractional atomic mass. What is the fractional mass of chlorine?
Give reason
`""_17^35"CI"` and `""_17^37"CI"` do not differ in their chemical reactions.
Compare :
Sodium atom and sodium ion
Identify the following reaction as either oxidation or reduction:
Zn → Zn2+ + 2e-
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 |
Choose the odd one out and write the reason:
