Spectral Hydrogen Atom, Physics, Basic Statistics

Assignment Help:
Long before Bohr gave his theory of hydrogen atom, various scientists had observed experimentally, the spectral series of hydrogen atom. Bohr offered a theoretical explanation of these spectral series as follows:

1. Lyman series: Bohr postulated Lyman series is obtained when an electron jumps to the first orbit (n1 = 1) from any outer orbit (n2 = 2, 3, 4……).

Wave numbers of spectral lines Lyman series were calculated by

v? = R [1/12 – 1/k2], where k = 2, 3, 4…

These values of v? lie in the ultra violet region of the spectrum and agree well with the values of v? observed experimentally by Lyman.

2. Balmer series: according to Bohr, Balmer series is obtained when an electron jumps to the second orbit (n1 =2) from any outer orbit (n2 = 3, 4, 5…..).

Wave numbers of these spectral lines were calculated as

v?= R [1/22 – 1/k2], where k = 3, 4, 5…..

This set of spectral lines lie in the visible part of the spectrum.

3. Paschen series: according to Bohr, Paschen series is obtained when an electron jumps to the third orbit (n1 =3) from any outer orbit (n2 = 4, 5, 6…) Bohr calculated the wave numbers of spectral lines of Paschen series from the relation:

v?= R [1/32 – 1/k2], where k = 4, 5, 6……

These values of v? lie in the infra red region of the spectrum and agree well with values of v? observed experimentally by Paschen.

Bohr also predicted two new series in the infra red region of the spectrum, which were observed later by Brackett and Pfund.

4. Bracket series: according to Bohr, Brackett series is obtained when an electron jumps to the 4th orbit (n1 = 4) from any outer orbit (n2 = 5, 6, 7……)

5. Pfund series: according to Bohr, is obtained when an electron jumps to the 5th orbit (n1 =5) from any outer orbit (n2 = 6, 7, 8…….)

The origins of various spectral series of hydrogen atom are represented by table under which gives the longest and the shortest wavelengths of some of the spectral series of hydrogen atom.

Related Discussions:- Spectral Hydrogen Atom, Physics

Statistics competency scores, A professor is interested in whether there is...

A professor is interested in whether there is a gap in counseling students' statistics competency scores between 1) those who have never taken any statistics course, 2) those who h

Collection method, what is the advantages of face-to-face interview?

what is the advantages of face-to-face interview?

PROBABILITY DISTRIBUTIONS, a). Show that if a random variable has a uniform...

a). Show that if a random variable has a uniform density with the parameters a and ß, the probability that it will take on a value less than a+p(ß-a) is equal to p b). Prove that t

Bill of exchange, Who can issue a bill of exchange for what purpose? Onl...

Who can issue a bill of exchange for what purpose? Only a supplier who has to get the cash from his client for the purchase which was done on credit score platform can increase

Hitorigram, what is difference between histogram and historigram

what is difference between histogram and historigram

Dist4ibution, I want support about statistical distributions

I want support about statistical distributions

FIFO, how to figure out cost of good available for sale, cost of sales, end...

how to figure out cost of good available for sale, cost of sales, ending inventory

Probability assessments, According to a weather forecaster's subjective pro...

According to a weather forecaster's subjective probability assessments, the probability of record-breaking rain during this year in Jamshedpur is 0.01 . However, if Ranchi has a r

Cash flow, A business starts out with a cash balance of £1,000. It then mak...

A business starts out with a cash balance of £1,000. It then makes the following transactions: Buys inventory on credit for £500 Sells a non-current asset for £100 cash Sells goods

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd