Radius of the third shell of H-atom is
Correct answer: B. 4.761 Å
- A. 5.761 Å
- B. 4.761 Å
- C. 6.671 Å
- D. 3.716 Å
Explanation
The radius of an orbit is given by,r=4π2mZe2n2h2 Substituting the values of h, m, Z=1 for hydrogen and the electron charge army be calculated asr=0.529×n2 ÅFor n=3r=4.761 Å
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Atomic Structure
Atomic structure covers the discovery of the proton, Planck's quantum theory, hydrogen emission spectra and the evidence for quantized energy levels. You will use quantum numbers to describe orbitals, distinguish s, p, d and f orbital shapes, and write electronic configurations, including the correct order of electron filling.
Practise Atomic Structure
922 free Atomic Structure MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Atomic Structure questions
The maximum number of electron in a sub shell with l= 3 is
The magnetic quantum number (QN) has its values determined directly by the
All of the following were theorised by Bohr in his description of the atom except
Colour of fluorescence by produced cathode rays depends upon
Rutherford's planet like structure was defective and unsatisfactory because
Atom cannot be divided into simple units, theorized by