Ask a Doubt
Request a call back

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

CBSE Class 11-science Answered

FIND
Asked by | 25 Aug, 2008, 11:30: PM
answered-by-expert Expert Answer

Volume =1 /3 ¶ r 3

=1/3 X 22/7 x 125 x 10 -33

density = mass/ volume

=1  / 2750x10 -33/21

=57750x10 -33

 

Answered by | 27 Aug, 2008, 02:37: PM
Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 11-science - Chemistry
isotopes
Asked by keerthi | 10 Jan, 2013, 07:38: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
ABOUT THE TOPIC
Asked by raushan kumar | 29 Dec, 2012, 08:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
ABOUT THE TOPIC
Asked by raushan kumar | 29 Dec, 2012, 08:41: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
ABOUT THE TOPIC
Asked by raushan kumar | 29 Dec, 2012, 08:40: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
A magnesium surface has a work function of 3.68 eV. Electromagnetic waves with a 215 nm wavelength strike the surface and eject photoelectrons. Calculate the energy of the photoelectrons in Joules and in electron volts.
Asked by | 29 Dec, 2012, 07:13: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Hello sir, in 5f orbital n=5 and l=n-1 so n=4 but tat is not the correct answer n=3 is correct, but how?
Asked by | 12 Dec, 2012, 09:19: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Explain schrodinger wave equation and its derivation.
Asked by | 26 Nov, 2012, 07:34: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
sir how to classify compounds for ex-CaSo4,HONO2,NO3-etc.on basis of whether they form covalent or ionic bonds?give a simple electronic structure for each?
Asked by Akash Sundi | 19 Nov, 2012, 02:58: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
what are the limitations of Bohr's model of an atom?
Asked by | 18 Nov, 2012, 04:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
which of the following values of energy is not possible to be absorbed or emitted by a body? (A)E=hv (B)E=14hv (C)E=2hv (D)E=1.5hv
Asked by | 13 Nov, 2012, 05:41: AM
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
×