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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:
Assertion : Isotopes are electrically neutral.
Reason : Isotopes are species with same mass number but different atomic numbers.
- a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Assertion (A) is false but reason (R) is true.
Correct answer is option 'C'. Can you explain this answer?
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Direction: In the following questions, a statement of assertion (A) i...
Isotopes are species with same atomic number but different mass numbers.
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Direction: In the following questions, a statement of assertion (A) i...
Assertion: Isotopes are electrically neutral.
Reason: Isotopes are species with the same mass number but different atomic numbers.
Isotopes are electrically neutral:
- Isotopes are defined as atoms of the same element that have the same number of protons (atomic number) but different numbers of neutrons.
- Since protons have a positive charge and neutrons have no charge, the total charge of an atom is determined by the number of protons and electrons it has.
- In a neutral atom, the number of protons is equal to the number of electrons, resulting in a net charge of zero.
- Therefore, isotopes, having the same number of protons and electrons, are electrically neutral.
Isotopes have the same mass number but different atomic numbers:
- The mass number of an atom is determined by the sum of its protons and neutrons.
- Isotopes of an element have the same number of protons (same atomic number) but different numbers of neutrons, leading to different mass numbers.
- For example, carbon-12 and carbon-14 are isotopes of carbon. Carbon-12 has 6 protons and 6 neutrons, while carbon-14 has 6 protons and 8 neutrons.
- Despite having different mass numbers, both isotopes are electrically neutral because the number of protons and electrons remains the same.
Conclusion:
The assertion is true that isotopes are electrically neutral because they have the same number of protons and electrons. However, the reason provided is false because it incorrectly states that isotopes have the same mass number but different atomic numbers. The correct statement should be that isotopes have the same atomic number but different mass numbers. Therefore, the correct answer is option C, where the assertion is true but the reason is false.
Reason: Isotopes are species with the same mass number but different atomic numbers.
Isotopes are electrically neutral:
- Isotopes are defined as atoms of the same element that have the same number of protons (atomic number) but different numbers of neutrons.
- Since protons have a positive charge and neutrons have no charge, the total charge of an atom is determined by the number of protons and electrons it has.
- In a neutral atom, the number of protons is equal to the number of electrons, resulting in a net charge of zero.
- Therefore, isotopes, having the same number of protons and electrons, are electrically neutral.
Isotopes have the same mass number but different atomic numbers:
- The mass number of an atom is determined by the sum of its protons and neutrons.
- Isotopes of an element have the same number of protons (same atomic number) but different numbers of neutrons, leading to different mass numbers.
- For example, carbon-12 and carbon-14 are isotopes of carbon. Carbon-12 has 6 protons and 6 neutrons, while carbon-14 has 6 protons and 8 neutrons.
- Despite having different mass numbers, both isotopes are electrically neutral because the number of protons and electrons remains the same.
Conclusion:
The assertion is true that isotopes are electrically neutral because they have the same number of protons and electrons. However, the reason provided is false because it incorrectly states that isotopes have the same mass number but different atomic numbers. The correct statement should be that isotopes have the same atomic number but different mass numbers. Therefore, the correct answer is option C, where the assertion is true but the reason is false.
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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer?
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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer?.
Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer?.
Solutions for Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
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Here you can find the meaning of Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Isotopes are electrically neutral.Reason : Isotopes are species with same mass number but different atomic numbers.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 9 tests.
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