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प्रश्न
Arrange the following in order of increasing ionisation energy:
Ne, He, Ar
Explain your choice.
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उत्तर
Ne, He, and Ar belong to group 18, and He is at the top. As ionisation energy decreases in the group, He has the highest ionisation energy.
संबंधित प्रश्न
The energy required to remove an electron from a neutral isolated gaseous atom and convert it into a positively charged gaseous ion is called ____________. (electron affinity, ionization potential,
electronegativity)
A process of formation of ions from molecules which are not in the ionic state
Which element from the following has the highest ionization energy?
Explain your choice.
P, Na, CI
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.
Arrange the following as per instruction given in the bracket.
Na, Mg, Cl, S, Si (increasing ionisation potential)
Arrange the following as per instruction given in the bracket.
Li, K, Na, H (decreasing order of their potential ionisation)
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.
Give reason:
Ionisation potential of the element increases across a period from left to right.
