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प्रश्न
In a group, a particular element has the lowest ionization potential; does it ionize most easily or least easily? Explain with example.
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उत्तर
The particular with lowest ionization potential in a group will ionize most easily.
For example among elements of group 1 Value of ionization potential is:
| Element | Li | Na | K | Rb | Cs |
| Ionization energy KJ mol-1 |
520 | 496 | 419 | 403 | 375 |
Cesium (Cs) has lowest ionization potential value which is 375 KJmol-1. So it will ionize most easily.
Concept Insight :
Lesser is the ionization potential value; more easily is the tendency to form a cation.
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संबंधित प्रश्न
Give a reason for Ionisation potential increases across a period, from left to right
Choose the correct answer.
An element with highest ionization potential
(i) Calesium
(ii) Fluorine
(iii) Helium
(iv) Neon
Arrange the following in increasing order of property indicated
Li, Be, B (ionization energy)
State whether the ionization potential increases or decreases on going down a group.
Supply the missing word from those in the brackets:
If an element has a low ionization energy then it is likely to be ______ (metallic/ non-metallic).
Fill in the blank from the choices given below
Across a period, the ionisation potential ____________.
Rewrite the following sentence by using the correct > (greater than) or < (less than) in the blank given
The ionization potential of potassium is _______ that of sodium.
Give reason for the following:
Ionisation potential decreases down a group.
Across a period, the ionization potential ______.
Give reason:
Ionisation potential of the element increases across a period from left to right.
