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f block of the Periodic Table consists of
- a)The first two groups of the periodic table
- b)halogens (Group 17) and the chalcogens (Group 16)
- c)Groups 13 and 14 “Transition Elements”.
- d)The two rows of elements at the bottom of the Periodic Table, called the Lanthanides, Ce(Z = 58) ñ Lu(Z = 71) and Actinoids
Correct answer is option 'D'. Can you explain this answer?
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f block of the Periodic Table consists ofa)The first two groups of the...
Lanthanides, Ce(Z = 58) ñ Lu(Z = 71) and Actinoids comprises of f block elements.
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f block of the Periodic Table consists ofa)The first two groups of the...
The f block of the Periodic Table consists of the two rows of elements at the bottom, known as the Lanthanides and Actinides. Let's break down the answer in detail:
1. Lanthanides:
- The Lanthanide series consists of the 15 elements from cerium (Ce) to lutetium (Lu) in the periodic table.
- They are located in the f block because the 4f sublevel is being filled with electrons.
- Lanthanides have similar properties and their electron configurations follow a specific pattern.
- They are also known as rare earth elements and have various applications in technology, including magnets, lasers, and catalysts.
2. Actinides:
- The Actinide series consists of the 15 elements from thorium (Th) to lawrencium (Lr) in the periodic table.
- Similar to the lanthanides, actinides are also located in the f block due to the filling of the 5f sublevel with electrons.
- Actinides are radioactive elements, and many of them have practical uses in nuclear reactors and medical applications.
- Some well-known actinides include uranium, plutonium, and americium.
Why is option 'D' the correct answer?
Option 'D' states that the f block consists of the two rows at the bottom of the Periodic Table, which refers to the Lanthanides and Actinides. This is the correct answer because these elements are indeed located in the f block due to the filling of the 4f and 5f sublevels with electrons.
Let's compare the other options:
a) The first two groups of the periodic table: This refers to the s block elements, which include Group 1 (alkali metals) and Group 2 (alkaline earth metals). These elements are not part of the f block.
b) Halogens (Group 17) and the chalcogens (Group 16): These elements belong to the p block of the periodic table, which is different from the f block.
c) Groups 13 and 14 Transition Elements: These elements belong to the d block of the periodic table, not the f block.
In conclusion, the correct answer is option 'D' as it accurately describes the f block of the Periodic Table as consisting of the Lanthanides, Actinides, and the two rows of elements at the bottom.
1. Lanthanides:
- The Lanthanide series consists of the 15 elements from cerium (Ce) to lutetium (Lu) in the periodic table.
- They are located in the f block because the 4f sublevel is being filled with electrons.
- Lanthanides have similar properties and their electron configurations follow a specific pattern.
- They are also known as rare earth elements and have various applications in technology, including magnets, lasers, and catalysts.
2. Actinides:
- The Actinide series consists of the 15 elements from thorium (Th) to lawrencium (Lr) in the periodic table.
- Similar to the lanthanides, actinides are also located in the f block due to the filling of the 5f sublevel with electrons.
- Actinides are radioactive elements, and many of them have practical uses in nuclear reactors and medical applications.
- Some well-known actinides include uranium, plutonium, and americium.
Why is option 'D' the correct answer?
Option 'D' states that the f block consists of the two rows at the bottom of the Periodic Table, which refers to the Lanthanides and Actinides. This is the correct answer because these elements are indeed located in the f block due to the filling of the 4f and 5f sublevels with electrons.
Let's compare the other options:
a) The first two groups of the periodic table: This refers to the s block elements, which include Group 1 (alkali metals) and Group 2 (alkaline earth metals). These elements are not part of the f block.
b) Halogens (Group 17) and the chalcogens (Group 16): These elements belong to the p block of the periodic table, which is different from the f block.
c) Groups 13 and 14 Transition Elements: These elements belong to the d block of the periodic table, not the f block.
In conclusion, the correct answer is option 'D' as it accurately describes the f block of the Periodic Table as consisting of the Lanthanides, Actinides, and the two rows of elements at the bottom.
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f block of the Periodic Table consists ofa)The first two groups of the periodic table b)halogens (Group 17) and the chalcogens (Group 16)c)Groups 13 and 14 “Transition Elements”.d)The two rows of elements at the bottom of the Periodic Table, called the Lanthanides, Ce(Z = 58) ñ Lu(Z = 71) and ActinoidsCorrect answer is option 'D'. Can you explain this answer?
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f block of the Periodic Table consists ofa)The first two groups of the periodic table b)halogens (Group 17) and the chalcogens (Group 16)c)Groups 13 and 14 “Transition Elements”.d)The two rows of elements at the bottom of the Periodic Table, called the Lanthanides, Ce(Z = 58) ñ Lu(Z = 71) and ActinoidsCorrect 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 f block of the Periodic Table consists ofa)The first two groups of the periodic table b)halogens (Group 17) and the chalcogens (Group 16)c)Groups 13 and 14 “Transition Elements”.d)The two rows of elements at the bottom of the Periodic Table, called the Lanthanides, Ce(Z = 58) ñ Lu(Z = 71) and ActinoidsCorrect 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 f block of the Periodic Table consists ofa)The first two groups of the periodic table b)halogens (Group 17) and the chalcogens (Group 16)c)Groups 13 and 14 “Transition Elements”.d)The two rows of elements at the bottom of the Periodic Table, called the Lanthanides, Ce(Z = 58) ñ Lu(Z = 71) and ActinoidsCorrect answer is option 'D'. Can you explain this answer?.
f block of the Periodic Table consists ofa)The first two groups of the periodic table b)halogens (Group 17) and the chalcogens (Group 16)c)Groups 13 and 14 “Transition Elements”.d)The two rows of elements at the bottom of the Periodic Table, called the Lanthanides, Ce(Z = 58) ñ Lu(Z = 71) and ActinoidsCorrect 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 f block of the Periodic Table consists ofa)The first two groups of the periodic table b)halogens (Group 17) and the chalcogens (Group 16)c)Groups 13 and 14 “Transition Elements”.d)The two rows of elements at the bottom of the Periodic Table, called the Lanthanides, Ce(Z = 58) ñ Lu(Z = 71) and ActinoidsCorrect 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 f block of the Periodic Table consists ofa)The first two groups of the periodic table b)halogens (Group 17) and the chalcogens (Group 16)c)Groups 13 and 14 “Transition Elements”.d)The two rows of elements at the bottom of the Periodic Table, called the Lanthanides, Ce(Z = 58) ñ Lu(Z = 71) and ActinoidsCorrect answer is option 'D'. Can you explain this answer?.
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ample number of questions to practice f block of the Periodic Table consists ofa)The first two groups of the periodic table b)halogens (Group 17) and the chalcogens (Group 16)c)Groups 13 and 14 “Transition Elements”.d)The two rows of elements at the bottom of the Periodic Table, called the Lanthanides, Ce(Z = 58) ñ Lu(Z = 71) and ActinoidsCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 11 tests.
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