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प्रश्न
Name the elements with highest and lowest ionization energies in the first three periods.
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उत्तर
Helium (He) has the highest ionization energy of all the elements, while Caesium (Cs) has the lowest ionization energy.
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संबंधित प्रश्न
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.
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.
Arrange the following in increasing order of property indicated
Li, Be, B (ionization energy)
What is meant by ionization potential?
In a group, a particular element has the lowest ionization potential; does it ionize most easily or least easily? Explain with example.
State whether the ionization potential increases or decreases on going down a group.
Arrange the following as per instruction given in the bracket.
Na, K, Cl, S, Si (increasing ionisation potential)
Arrange the following as per the instruction given in the bracket:
Potassium, Lithium, Sodium (increasing order of ionization potential).
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.
