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प्रश्न
What is meant by ionization potential?
उत्तर
Ionization potential or ionization energy is defined as the energy to remove an electron from an isolated gaseous atom so as to convert it into a gaseous cation. The process may be representated as:
M(g) + Ionization energy → M+(g) + e-
It is known as ionization potential since it is the minimum potential difference( in a discharge tube) required to remove an electron from an isolated gaseous atom to form a gaseous cation.
Units : Its units are electron volts (ev) per atom.
Its SI units are Kilojoules per mole (Kjmol-1).
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संबंधित प्रश्न
Choose the correct answer from the options given below:
Ionisation potential increases over a period from left to right because of the
(A) Atomic radius increases and nuclear charge increases
(B) Atomic radius decreases and nuclear charge decreases
(C) Atomic radius increases and nuclear charge decreases
(D) Atomic radius decreases and nuclear charge increases
Give a reason for Ionisation potential increases across a period, from left to right
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)
In a group, a particular element has the lowest ionization potential; does it ionize most easily or least easily? Explain with example.
Arrange the following as per instruction given in the bracket.
Na, Mg, Cl, S, Si (increasing ionisation potential)
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:
P, Na, Cl
Explain your choice.
Across a period, the ionization potential ______.
Ionisation Potential values depend on the nuclear pull. Explain.
