Advertisements
Advertisements
प्रश्न
Arrange the following as per the instruction given in the bracket:
Potassium, Lithium, Sodium (increasing order of ionization potential).
Advertisements
उत्तर
Potassium < Sodium < Lithium.
Explanation:
The ionization potential increases as we move up a group in the periodic table because the atomic size decreases, making it harder to remove an electron. Potassium, Lithium, and Sodium belong to Group 1 (alkali metals).
- Potassium (K): Has the lowest ionization potential because it has the largest atomic size and the outermost electron is farthest from the nucleus.
- Sodium (Na): Has a smaller atomic size than potassium, so its ionization potential is higher.
- Lithium (Li): Has the smallest atomic size and the strongest attraction between the nucleus and the outermost electron, giving it the highest ionization potential.
संबंधित प्रश्न
Give a reason for the following:
Ionisation potential increases across a period, from left to right.
Arrange the elements of second and third period in increasing order of ionization energy.
Give reason for the following:
Ionisation potential of the element increases across a period.
Choose the correct answer.
An element with highest ionization potential
(i) Calesium
(ii) Fluorine
(iii) Helium
(iv) Neon
A, B, C are three elements in which B is an inert gas other than helium.With this information complete the following table.
| Element | Atomic number | No. of electrons in the valence shell | Group to which the element belongs |
| A | Z - 1 | ||
| B | Z | ||
| C | Z + 1 |
Also, explain the following : Ionization energy of element C is less than that of element A.
The metals of group 2 from top to bottom are: Be, Mg, Ca, Sr, Ba. Which of these metals will form ions most readily and why?
Arrange the following as per the instruction given in the bracket
Na,Li,K (Increasing ionization energy)
Give reason for the following:
Ionisation potential decreases down a group.
Arrange the following as per instruction given in the bracket.
Na, Mg, Cl, S, Si (increasing ionisation potential)
Arrange the following in order of increasing ionisation energy:
Ne, He, Ar
Explain your choice.
