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Assertion : The atomic radii of calcium is smaller than sodium.
Reason : Calcium has a lower nuclear charge than sodium
- a)If both Assertion & Reason are true and the Reason is the correct explanation of the Assertion.
- b)If both Assertion & Reason are true but the Reason is not the correct explanation of the Assertion.
- c)If Assertion is true statement but Reason is false.
- d)If Assertion is false statement but Reason is true.
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Assertion : The atomic radii of calcium is smaller than sodium.Reason ...
Calcium has a higher nuclear charge than sodium.
Most Upvoted Answer
Assertion : The atomic radii of calcium is smaller than sodium.Reason ...
Assertion- The atomic radii of calcium is smaller than sodium.
Reason- Calcium has a lower nuclear charge than sodium.
Explanation:
• The atomic radius of an element is defined as the distance between the nucleus of an atom and its outermost shell of electrons.
• The nuclear charge of an atom, which is equal to the number of protons in the nucleus, determines the attraction between the nucleus and the electrons in the outermost shell.
• The greater the nuclear charge, the stronger the attraction between the nucleus and the electrons, and the smaller the atomic radius.
• Calcium has a nuclear charge of 20, whereas Sodium has a nuclear charge of 11.
• The higher the nuclear charge of Calcium results in a stronger attraction between the nucleus and outermost electrons, which makes the atomic size of Calcium smaller than Sodium.
• Therefore, the Assertion is true.
• However, the Reason given is false because Calcium has a higher nuclear charge than Sodium.
Conclusion:
• Hence, the correct answer is option 'C' - Assertion is a true statement, but the Reason is false.
Reason- Calcium has a lower nuclear charge than sodium.
Explanation:
• The atomic radius of an element is defined as the distance between the nucleus of an atom and its outermost shell of electrons.
• The nuclear charge of an atom, which is equal to the number of protons in the nucleus, determines the attraction between the nucleus and the electrons in the outermost shell.
• The greater the nuclear charge, the stronger the attraction between the nucleus and the electrons, and the smaller the atomic radius.
• Calcium has a nuclear charge of 20, whereas Sodium has a nuclear charge of 11.
• The higher the nuclear charge of Calcium results in a stronger attraction between the nucleus and outermost electrons, which makes the atomic size of Calcium smaller than Sodium.
• Therefore, the Assertion is true.
• However, the Reason given is false because Calcium has a higher nuclear charge than Sodium.
Conclusion:
• Hence, the correct answer is option 'C' - Assertion is a true statement, but the Reason is false.
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Community Answer
Assertion : The atomic radii of calcium is smaller than sodium.Reason ...
Although Ca has greater no. of protons,it has a lower effective nuclear charge than Na resulting in weaker pull of its outer electrons and thus a greater atomic radius. As it has one more shell than Na so it's size is more than Na.So I think the answer should be d).
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Assertion : The atomic radii of calcium is smaller than sodium.Reason : Calcium has a lower nuclear charge than sodiuma)If both Assertion & Reason are true and the Reason is the correct explanation of the Assertion.b)If both Assertion & Reason are true but the Reason is not the correct explanation of the Assertion.c)If Assertion is true statement but Reason is false.d)If Assertion is false statement but Reason is true.Correct answer is option 'C'. Can you explain this answer?
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Assertion : The atomic radii of calcium is smaller than sodium.Reason : Calcium has a lower nuclear charge than sodiuma)If both Assertion & Reason are true and the Reason is the correct explanation of the Assertion.b)If both Assertion & Reason are true but the Reason is not the correct explanation of the Assertion.c)If Assertion is true statement but Reason is false.d)If Assertion is false statement but Reason is true.Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Assertion : The atomic radii of calcium is smaller than sodium.Reason : Calcium has a lower nuclear charge than sodiuma)If both Assertion & Reason are true and the Reason is the correct explanation of the Assertion.b)If both Assertion & Reason are true but the Reason is not the correct explanation of the Assertion.c)If Assertion is true statement but Reason is false.d)If Assertion is false statement but Reason is true.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion : The atomic radii of calcium is smaller than sodium.Reason : Calcium has a lower nuclear charge than sodiuma)If both Assertion & Reason are true and the Reason is the correct explanation of the Assertion.b)If both Assertion & Reason are true but the Reason is not the correct explanation of the Assertion.c)If Assertion is true statement but Reason is false.d)If Assertion is false statement but Reason is true.Correct answer is option 'C'. Can you explain this answer?.
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