Chemistry Exam > Chemistry Questions > In the fourth period of the periodic table, h...
Start Learning for Free
In the fourth period of the periodic table, how many elements have one or more 4d electrons:
- a)2
- b)18
- c)0
- d)6
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
In the fourth period of the periodic table, how many elements have one...
Answer:
In the fourth period of the periodic table, there are no elements that have one or more 4d electrons. This is because the fourth period corresponds to the n=4 energy level, which includes the 4s and 3d sublevels.
Explanation:
- The fourth period of the periodic table includes the elements potassium (K) through krypton (Kr).
- The 4s sublevel can hold up to 2 electrons, and the 3d sublevel can hold up to 10 electrons.
- Therefore, the elements in the fourth period can have up to 12 electrons in the n=4 energy level.
- However, none of the elements in the fourth period have any electrons in the 4d sublevel.
- The 4d sublevel comes after the 3d sublevel in energy, so it is not filled until the fifth period.
- Elements in the fifth period, such as niobium (Nb) and ruthenium (Ru), have electrons in the 4d sublevel.
- Therefore, the correct answer is option 'C', which states that there are no elements in the fourth period with 4d electrons.
In the fourth period of the periodic table, there are no elements that have one or more 4d electrons. This is because the fourth period corresponds to the n=4 energy level, which includes the 4s and 3d sublevels.
Explanation:
- The fourth period of the periodic table includes the elements potassium (K) through krypton (Kr).
- The 4s sublevel can hold up to 2 electrons, and the 3d sublevel can hold up to 10 electrons.
- Therefore, the elements in the fourth period can have up to 12 electrons in the n=4 energy level.
- However, none of the elements in the fourth period have any electrons in the 4d sublevel.
- The 4d sublevel comes after the 3d sublevel in energy, so it is not filled until the fifth period.
- Elements in the fifth period, such as niobium (Nb) and ruthenium (Ru), have electrons in the 4d sublevel.
- Therefore, the correct answer is option 'C', which states that there are no elements in the fourth period with 4d electrons.
Free Test
FREE
| Start Free Test |
Community Answer
In the fourth period of the periodic table, how many elements have one...
The general electronic configuration of d block is (n-1) d ns since 4th period n-1=3 so the 4th period has no 4d electrons
|
Explore Courses for Chemistry exam
|
|
Similar Chemistry Doubts
Question Description
In the fourth period of the periodic table, how many elements have one or more 4d electrons:a)2b)18c)0d)6Correct answer is option 'C'. Can you explain this answer? for Chemistry 2025 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about In the fourth period of the periodic table, how many elements have one or more 4d electrons:a)2b)18c)0d)6Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Chemistry 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the fourth period of the periodic table, how many elements have one or more 4d electrons:a)2b)18c)0d)6Correct answer is option 'C'. Can you explain this answer?.
In the fourth period of the periodic table, how many elements have one or more 4d electrons:a)2b)18c)0d)6Correct answer is option 'C'. Can you explain this answer? for Chemistry 2025 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about In the fourth period of the periodic table, how many elements have one or more 4d electrons:a)2b)18c)0d)6Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Chemistry 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the fourth period of the periodic table, how many elements have one or more 4d electrons:a)2b)18c)0d)6Correct answer is option 'C'. Can you explain this answer?.
Solutions for In the fourth period of the periodic table, how many elements have one or more 4d electrons:a)2b)18c)0d)6Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Chemistry.
Download more important topics, notes, lectures and mock test series for Chemistry Exam by signing up for free.
Here you can find the meaning of In the fourth period of the periodic table, how many elements have one or more 4d electrons:a)2b)18c)0d)6Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
In the fourth period of the periodic table, how many elements have one or more 4d electrons:a)2b)18c)0d)6Correct answer is option 'C'. Can you explain this answer?, a detailed solution for In the fourth period of the periodic table, how many elements have one or more 4d electrons:a)2b)18c)0d)6Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of In the fourth period of the periodic table, how many elements have one or more 4d electrons:a)2b)18c)0d)6Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice In the fourth period of the periodic table, how many elements have one or more 4d electrons:a)2b)18c)0d)6Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Chemistry tests.
|
|
Explore Courses for Chemistry exam
|
|
Signup to solve all Doubts
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup