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In the periodic table, with the increase in atomic number, the metallic character of an element [1989]
- a)Decreases in a period and increases in a group
- b)In creases in a period an d decr eases in a group
- c)Increases both in a period and the group
- d)Decreases in a period and the group.
Correct answer is option 'A'. Can you explain this answer?
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In the periodic table, with the increase in atomic number, the metalli...
Metallic character decreases in a period and increases in a group.
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In the periodic table, with the increase in atomic number, the metalli...
Explanation:
In the periodic table, metallic character refers to the extent to which an element displays the properties of a metal. These properties include luster, conductivity, malleability, and ductility. The metallic character of an element generally decreases from left to right across a period and increases from top to bottom within a group.
Decrease in a period:
- In a period, the atomic number (number of protons) increases from left to right.
- As the atomic number increases, the number of electrons also increases, resulting in a stronger attraction between the electrons and the nucleus.
- This increased attraction leads to a decrease in metallic character because the electrons are held more tightly and are less free to move, reducing the conductivity and malleability of the element.
- Additionally, the increase in atomic number leads to a decrease in atomic radius, making it more difficult for the outermost electrons to be released, further reducing the metallic character.
Increase in a group:
- In a group, the atomic number increases from top to bottom.
- As the atomic number increases, the number of energy levels (shells) also increases, resulting in a larger atomic radius.
- The larger atomic radius allows the outermost electrons to be farther from the nucleus, reducing the attraction between the electrons and the nucleus.
- This decreased attraction leads to an increase in metallic character because the electrons are more free to move, increasing the conductivity and malleability of the element.
Conclusion:
Therefore, the metallic character of an element decreases in a period and increases in a group as we move across the periodic table from left to right and from top to bottom, respectively.
In the periodic table, metallic character refers to the extent to which an element displays the properties of a metal. These properties include luster, conductivity, malleability, and ductility. The metallic character of an element generally decreases from left to right across a period and increases from top to bottom within a group.
Decrease in a period:
- In a period, the atomic number (number of protons) increases from left to right.
- As the atomic number increases, the number of electrons also increases, resulting in a stronger attraction between the electrons and the nucleus.
- This increased attraction leads to a decrease in metallic character because the electrons are held more tightly and are less free to move, reducing the conductivity and malleability of the element.
- Additionally, the increase in atomic number leads to a decrease in atomic radius, making it more difficult for the outermost electrons to be released, further reducing the metallic character.
Increase in a group:
- In a group, the atomic number increases from top to bottom.
- As the atomic number increases, the number of energy levels (shells) also increases, resulting in a larger atomic radius.
- The larger atomic radius allows the outermost electrons to be farther from the nucleus, reducing the attraction between the electrons and the nucleus.
- This decreased attraction leads to an increase in metallic character because the electrons are more free to move, increasing the conductivity and malleability of the element.
Conclusion:
Therefore, the metallic character of an element decreases in a period and increases in a group as we move across the periodic table from left to right and from top to bottom, respectively.
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In the periodic table, with the increase in atomic number, the metallic character of an element [1989]a)Decreases in a period and increases in a groupb)In creases in a period an d decr eases in a groupc)Increases both in a period and the groupd)Decreases in a period and the group.Correct answer is option 'A'. Can you explain this answer?
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In the periodic table, with the increase in atomic number, the metallic character of an element [1989]a)Decreases in a period and increases in a groupb)In creases in a period an d decr eases in a groupc)Increases both in a period and the groupd)Decreases in a period and the group.Correct answer is option 'A'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about In the periodic table, with the increase in atomic number, the metallic character of an element [1989]a)Decreases in a period and increases in a groupb)In creases in a period an d decr eases in a groupc)Increases both in a period and the groupd)Decreases in a period and the group.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the periodic table, with the increase in atomic number, the metallic character of an element [1989]a)Decreases in a period and increases in a groupb)In creases in a period an d decr eases in a groupc)Increases both in a period and the groupd)Decreases in a period and the group.Correct answer is option 'A'. Can you explain this answer?.
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