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प्रश्न
Give reason for the following:
Ionisation potential decreases down a group.
उत्तर
As we move down a group, the atomic size increases due to an increase in the outermost shells. As a result, moving down a group is easier to remove because we don't need as much energy. As a result, the ionisation potential of a group falls.
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संबंधित प्रश्न
State the trends in ionization energy down the group.
Name the elements with highest and lowest ionization energies in the first three periods.
Name the periodic property which relates to the amount of energy required to remove an electron from an isolated gaseous atom.
Which element from the following has the highest ionization energy?
Explain your choice.
Ne, He, Ar
Li, K, Na, H (In the decreasing order of their ionization potential)
Arrange the following in increasing order of property indicated
Li, Be, B (ionization energy)
First ionisation enthalpy of two elements X and Y are 500 kJ mol−1 and 375 kJ mol−1 respectively. Comment about their relative position in a group as well as in a period.
Arrange the following in order of increasing ionisation energy:
F, O, Ne
Explain your choice.
With reference to the variation of properties in the Periodic Table, which of the following is generally true?
Give reason:
Ionisation potential of the element increases across a period from left to right.
