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प्रश्न
State whether the ionization potential increases or decreases on going down a group.
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उत्तर
Ionization potential decreases down the group because atomic size increases down the group which decreases the effective nuclear charge over the valence electron which further can now be removed easily.
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संबंधित प्रश्न
Give one word or phrase for the following:
Formation of ions from molecules
Name the elements with highest and lowest ionization energies in the first three periods.
Which element from the following has the highest ionization energy?
Explain your choice.
F, O, Ne
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)
Electron affinities of two elements A and B are given below:
A = 3.79 electron volts
B = 3.56 electron volts
Which of them will ionize more easily and why?
The metals of group 2 from top to bottom are: Be, Mg, Ca, Sr, Ba. Which of these metals will form ions most readily and why?
Fill in the blank from the choice given in bracket.
The energy required to remove on electron from a natural isolated gaseous atom and convert it into a positively charged gaseous ion is called ____________
Give reason for the following:
Ionisation potential decreases down a group.
Identify the following:
The energy required to remove an electron from a neutral gaseous atom.
