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प्रश्न
Write scientific reason.
The non-metallic character increases while going from left to right in a period.
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उत्तर
- While going from left to right in a period, electrons are added to the same outermost shell. At the same time, protons get added in the nucleus increasing the nuclear charge.
- Hence, these electrons experience greater pull from the nucleus due to increased effective nuclear charge.
- As a result, the ability of an atom to become anion by accepting outside electrons increases.
- The non-metallic character of an atom is its tendency to gain electrons.
Hence, non-metallic character increases while going from left to right in a period.
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संबंधित प्रश्न
Metallic character and non-metallic character are periodic properties discuss ?
Give the trend in metallic character:
(i) across the period left to right
Name the periodic property which relates to the character of element which loses one or more electrons when supplied with energy.
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Group 17 elements are strong non-metals, while group 1 elements are strong metals.
How do the following change on moving from left to right in a period of the periodic table?
Give examples in support of your answer.
Nature of oxides of the elements ?
Arrange the elements of group 17 and group 1 according to the given conditions.
Increasing non – metallic character
The elements at the bottom of a group would be expected to show ______ metallic character than the element at the top.
Study the extract of the Periodic Table given below and answer the questions that follow. Give the alphabet corresponding to the element in question. DO NOT repeat an element. 
Which non-metallic element has the valency of 2?
State whether the following statement is true or false
All members of zero group are non metals.
Refering to changes in the properties of elements on moving from left to right across a period of the periodic table. Choose the correct answer.
The non-metallic character of the elements :
The tendency of an element to form anion is the ______ character of that element.
Electropositivity means ______.
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The metal which is hard and has a high melting point and used in filaments of electrical bulbs is ______
The lightest liquid metal is ______
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Which of the following set of elements is written in order of their increasing metallic character?
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