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Question
Define the term ‘ionisation potential`.
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Solution
The energy required to remove an electron from a neutral isolated gaseous atom and convert it into a positively charged gaseous ion is called Ionization energy or ionization potential.
RELATED QUESTIONS
Rewrite the following sentences by using the correct symbol > (greater than) or < (less than) in the blanks given
The ionization potential of potassium is _________________ that of sodium.
Give one word or a phrase:
A process of formation of ions from molecules which are not in the ionic state.
Represent ionisation potential in the form of an equation. In which unit it is measured?
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.
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.
State whether the ionization potential increases or decreases on going down a group.
Identify the following:
The energy required to remove an electron from a neutral gaseous atom.
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.
