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प्रश्न
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.
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उत्तर
Ionisation Enthalpy or potential is highest on the right side of the periodic table and lowest on the left side. Elements X and Y seem to be metals, which are on the left side of the table. Group I metals lose one electron each. Ionisation Enthalpy decreases in groups from top to bottom. In the IA group, X represents Sodium (Na) and Y represents Caesium (Cs). Also, X is in the third period and Y is in the sixth.
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संबंधित प्रश्न
Arrange the following as per the instruction given in the brackets:
Na, Li, K (Increasing Ionisation Energy)
Name the elements with highest and lowest ionization energies in the first three periods.
Which element has:
two shells, both of which are completely filled with electrons?
Li, K, Na, H (In the decreasing order of their ionization potential)
Fill in the blank by selecting the correct word from the option.
If an element has a low ionization energy then it is likely to be ________
The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer.
The ionization potential:
Give reason for the following:
Ionisation potential decreases down a group.
Arrange the following as per instruction given in the bracket.
Li, K, Na, H (decreasing order of their potential ionisation)
Arrange the following in order of increasing ionisation energy:
F, O, Ne
Explain your choice.
The element with highest ionisation potential is ______.
