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The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group ?
- a)A and B
- b)B and D
- c)A and C
- d)D and E
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 ...
Elements A and C belong to the same group because there is a difference o f 8 in the atomic number (F and Cl).
Most Upvoted Answer
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 ...
C)A and C because they both have 7 valency electrons in their outermost shell.
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Community Answer
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 ...
Explanation:
Grouping of Elements
- Elements in the periodic table are arranged in groups based on similar chemical properties.
- Elements in the same group have the same number of valence electrons.
Atomic Numbers of Given Elements
- Element A (atomic number 9) is Fluorine (F).
- Element B (atomic number 11) is Sodium (Na).
- Element C (atomic number 17) is Chlorine (Cl).
- Element D (atomic number 12) is Magnesium (Mg).
- Element E (atomic number 13) is Aluminum (Al).
Grouping of Elements
- Elements A and C belong to the same group because they both belong to Group 17 (also known as Group VIIA), which is the Halogens group.
- Fluorine (F) and Chlorine (Cl) are both halogens and have 7 valence electrons.
Therefore, the correct pair of elements that belong to the same group is option C - A and C.
Grouping of Elements
- Elements in the periodic table are arranged in groups based on similar chemical properties.
- Elements in the same group have the same number of valence electrons.
Atomic Numbers of Given Elements
- Element A (atomic number 9) is Fluorine (F).
- Element B (atomic number 11) is Sodium (Na).
- Element C (atomic number 17) is Chlorine (Cl).
- Element D (atomic number 12) is Magnesium (Mg).
- Element E (atomic number 13) is Aluminum (Al).
Grouping of Elements
- Elements A and C belong to the same group because they both belong to Group 17 (also known as Group VIIA), which is the Halogens group.
- Fluorine (F) and Chlorine (Cl) are both halogens and have 7 valence electrons.
Therefore, the correct pair of elements that belong to the same group is option C - A and C.
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The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group ?a)A and Bb)B and Dc)A and Cd)D and ECorrect answer is option 'C'. Can you explain this answer?
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The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group ?a)A and Bb)B and Dc)A and Cd)D and ECorrect answer is option 'C'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group ?a)A and Bb)B and Dc)A and Cd)D and ECorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group ?a)A and Bb)B and Dc)A and Cd)D and ECorrect answer is option 'C'. Can you explain this answer?.
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