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In the following question a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.
Assertion (A): According to Mendeleev, periodic properties of elements is a function of their atomic number.
Reason (R): Atomic number is equal to the number of protons.
- a)Both A and R are true and R is the correct explanation of A.
- b)Both A and R are true but R is not the correct explanation of A.
- c)A is true but R is false.
- d)Both A and R are false.
Correct answer is option 'D'. Can you explain this answer?
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In the following question a statement of Assertion (A) followed by a ...
According to Mendeleev, periodic properties of elements is a function of their atomic masses.
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In the following question a statement of Assertion (A) followed by a ...
Assertion (A): According to Mendeleev, periodic properties of elements is a function of their atomic number.
Reason (R): Atomic number is equal to the number of protons.
Explanation:
Periodic properties of elements:
- Periodic properties of elements refer to the trends and patterns that can be observed when elements are arranged in the periodic table.
- These properties include atomic radius, ionization energy, electron affinity, electronegativity, and reactivity.
- The periodic table is a systematic arrangement of elements based on their atomic number and electron configuration.
Mendeleev's periodic table:
- Dmitri Mendeleev was a Russian chemist who is credited with the discovery and development of the periodic table.
- Mendeleev arranged the elements in his periodic table in order of increasing atomic mass.
- He noticed that when elements were arranged in this manner, certain periodic trends and patterns emerged.
Atomic number and periodic properties:
- The atomic number of an element is equal to the number of protons in the nucleus of its atom.
- It is a unique identifier for each element and determines its position in the periodic table.
- Mendeleev's assertion that periodic properties of elements are a function of their atomic number is correct.
- The atomic number determines the arrangement of elements in the periodic table and is directly related to their electron configuration.
- The electron configuration of an atom determines its chemical properties and behavior.
- As the atomic number increases, the number of protons and electrons also increases, leading to changes in the electron configuration and subsequently the periodic properties of the elements.
Conclusion:
- Both the assertion (A) and reason (R) are true.
- The reason (R) correctly explains the assertion (A).
- Therefore, the correct option is (D) - Both A and R are true, but R is not the correct explanation of A.
Reason (R): Atomic number is equal to the number of protons.
Explanation:
Periodic properties of elements:
- Periodic properties of elements refer to the trends and patterns that can be observed when elements are arranged in the periodic table.
- These properties include atomic radius, ionization energy, electron affinity, electronegativity, and reactivity.
- The periodic table is a systematic arrangement of elements based on their atomic number and electron configuration.
Mendeleev's periodic table:
- Dmitri Mendeleev was a Russian chemist who is credited with the discovery and development of the periodic table.
- Mendeleev arranged the elements in his periodic table in order of increasing atomic mass.
- He noticed that when elements were arranged in this manner, certain periodic trends and patterns emerged.
Atomic number and periodic properties:
- The atomic number of an element is equal to the number of protons in the nucleus of its atom.
- It is a unique identifier for each element and determines its position in the periodic table.
- Mendeleev's assertion that periodic properties of elements are a function of their atomic number is correct.
- The atomic number determines the arrangement of elements in the periodic table and is directly related to their electron configuration.
- The electron configuration of an atom determines its chemical properties and behavior.
- As the atomic number increases, the number of protons and electrons also increases, leading to changes in the electron configuration and subsequently the periodic properties of the elements.
Conclusion:
- Both the assertion (A) and reason (R) are true.
- The reason (R) correctly explains the assertion (A).
- Therefore, the correct option is (D) - Both A and R are true, but R is not the correct explanation of A.
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In the following question a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): According to Mendeleev, periodic properties of elements is a function of their atomic number.Reason (R): Atomic number is equal to the number of protons.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true but R is not the correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'D'. Can you explain this answer?
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In the following question a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): According to Mendeleev, periodic properties of elements is a function of their atomic number.Reason (R): Atomic number is equal to the number of protons.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true but R is not the correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'D'. 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 following question a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): According to Mendeleev, periodic properties of elements is a function of their atomic number.Reason (R): Atomic number is equal to the number of protons.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true but R is not the correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'D'. 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 following question a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): According to Mendeleev, periodic properties of elements is a function of their atomic number.Reason (R): Atomic number is equal to the number of protons.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true but R is not the correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'D'. Can you explain this answer?.
In the following question a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): According to Mendeleev, periodic properties of elements is a function of their atomic number.Reason (R): Atomic number is equal to the number of protons.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true but R is not the correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'D'. 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 following question a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): According to Mendeleev, periodic properties of elements is a function of their atomic number.Reason (R): Atomic number is equal to the number of protons.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true but R is not the correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'D'. 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 following question a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A): According to Mendeleev, periodic properties of elements is a function of their atomic number.Reason (R): Atomic number is equal to the number of protons.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true but R is not the correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'D'. Can you explain this answer?.
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