Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

THE VALUE OF GROUND  STATE ENERGY OF HYDROGEN ATOM IS -13.6eV WHAT DOES THE NEGATIVE SIGN SIGNIFY AND HOW MUCH ENERGY IS REQUIRED TO TAKE AN ELECTRON IN THIS ATOM FROM GROUND STATE TO THE FIRST EXCITED STATE ?
Asked by pardeepkumar2281 | 28 Feb, 2019, 07:24: PM
answered-by-expert Expert Answer
It is total energy of the electron in its ground state in hydrogen atom. As from the study from chemistry for a atom be stable its energy must be low otherwise higher energy of an atom can lead to instability of an atom.
Total energy of electron in an orbit is addition of potential as well as kinetic energy. Kinetic energy can never be negative but potential energy can take negative value. Negative values of potential energy means more the atom will be stable.
 
 
Energy required = 13.6 (1/1 - 1/4) = (13.6×3)/4 = 10.2eV.
Answered by Ankit K | 28 Feb, 2019, 10:21: PM
Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 12-science - Physics
The number of moles in an elemental sample is just the ratio of the mass m to atomic mass 4. n= A The number of protons N, in an elemental sample is Z (atomic number) times the number of moles of Avogadro's number NA N=ZnN P A Copper has an atomic mass of 63.5 g/mole and 29 protons per atom. If such an atom were neutral, then it would have as many protons as electrons. If you remove electrons from a neutral state, then you get a net positive charge. Given a 54 gram ball of copper with a net charge of 2.2 µC, what fraction of the copper's electrons have been removed?
Asked by dasrituparna1999 | 12 Apr, 2024, 09:26: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
consider a hypothesis H-like atom, the wavelength in Amstrong for the spectral lines for the transition from n=p to n=1 is given as  wavelength =1500p^2/p^2 -1 where p>1 find the minimum and maximum wavelength
Asked by Akshatkuma2004 | 04 Jul, 2021, 04:04: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Why emission spectra are seen in only those gases which have low density or low number of collisions?
Asked by rsrakesh932 | 12 Jun, 2020, 04:38: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
How to obtain bright fringes by young double slit experiment. ??
Asked by yadavnitish688 | 14 Dec, 2019, 06:04: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
What is the radius of an electron?
Asked by sidiz.shrestha07 | 26 May, 2019, 06:42: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
THE VALUE OF GROUND  STATE ENERGY OF HYDROGEN ATOM IS -13.6eV WHAT DOES THE NEGATIVE SIGN SIGNIFY AND HOW MUCH ENERGY IS REQUIRED TO TAKE AN ELECTRON IN THIS ATOM FROM GROUND STATE TO THE FIRST EXCITED STATE ?
Asked by pardeepkumar2281 | 28 Feb, 2019, 07:24: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
What is the order of velocity of an electron in H atom in ground state ?
Asked by pradeepjsme | 30 Jan, 2019, 03:54: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
What is the order of velocity of an electron in a H-atom in ground state?
Asked by pradeepjsme | 30 Jan, 2019, 03:51: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Using de Boglie's hypothesis, explain with the help of a suitable diagram, Bohr's second postulate of quantisation of energy levels in a hydrogen atom.
Asked by rohitraman1115 | 14 Jan, 2019, 12:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
The ground state energy of hydrogen atom is -13.6eV. What are the kinetic and potential energies of the electron in this state?
Asked by rohitraman1115 | 14 Jan, 2019, 12:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×