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Question
With reference to the variation of properties in the Periodic Table, which of the following is generally true?
Options
Atomic size increases from left to right across a period.
Ionization potential increases from left to right across a period.
Electron affinity increases going down a group.
Electro-negativity increases going down a group.
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Solution
Ionization potential increases from left to right across a period.
RELATED QUESTIONS
Give one word or a phrase:
A process of formation of ions from molecules which are not in the ionic state.
Define the term ‘ionisation potential`.
Give reason for the following:
Ionisation potential of the element increases across a period.
Which element has:
two shells, both of which are completely filled with electrons?
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.
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?
Arrange the following in order of increasing ionisation energy:
P, Na, Cl
Explain your choice.
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.
