Advertisements
Advertisements
प्रश्न
Explain the following:
The reducing power of element increases down in the group while decreases in a period.
उत्तर
The reducing property depends on the ionisation potential and electron affinity of the elements. In a period, from left to right in a horizontal row of the periodic table, the atomic size decreases and the nuclear charge increases, so the electron affinity and ionisation energy both increase. Hence, the tendency to lose electrons decreases across the period from left to right and thus the reducing property also decreases across the period from left to right.
The electron affinity and ionisation potential decreases along the group from top to bottom. Hence, the tendency to lose electrons increases, and thus, the reducing property also increases along the group from top to bottom.
संबंधित प्रश्न
Give one word or phrase for the following:
The amount of energy released when an atom in the gaseous state accepts an electron to form an anion.
Define the term ‘electron affinity’.
Arrange the elements of group 17 and group 1 according to the given conditions.
Increasing electron affinity
Fill in the blank
Energy released when electron is added to a neutral gaseous atom is called ______.
Fill in the blank
The nature of oxide Al2O3 is ____
State whether the following statement is true or false
The elements with higher electron affinity have higher ionization potential.
What is electron affinity?
The following questions refer to the Periodic Table.
Which of the elements has the greatest electron affinity among the halogens?
Arrange the following as per instruction given in the bracket.
Cl, F, Br, I (increasing electron affinity)
State electron affinity unit.
