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Question
Arrange the elements of second and third period in increasing order of ionization energy.
Solution
Second period: Neon > Fluorine > Oxygen > Nitrogen > Carbon > Boron > Beryllium > Lithium
Third Period: Argon > Chlorine > Sulphur > Phosphorus > Silicon > Aluminum > Magnesium > Sodium
RELATED QUESTIONS
Arrange the following as per the instruction given in the brackets:
Na, Li, K (Increasing Ionisation Energy)
Give a reason for Ionisation potential increases across a period, from left to right
State the trends in ionization energy across the period.
Give reason for the following:
Ionisation potential of the element increases across a period.
Among the elements of the second period, Li to Ne, pick out the element with highest first ionization energy
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.
Fill in the blank from the choices given below
Across a period, the ionisation potential ____________.
Identify the following:
The energy required to remove an electron from a neutral gaseous atom.
Arrange the following in order of increasing ionisation energy:
Ne, He, Ar
Explain your choice.
Across a period, the ionization potential ______.
