Can any body help..
I need these Q's' Answers..
1. The element of Copper is found to be contain the two isotopes 63Cu and 65Cu whose masses have been determined to be 92.9298 and 64.9278 amu respectively, calculate the average atomic mass of copper?
2. During the experiment of determine charge of electron, the resulted charge/mass ratio was = 9.58 x 104 c/g, calculate the mass of this particles if you know that its charge was (e) = 3.2 x 10-19 coulombs.
3.What are the number of protons, neutrons, and electrons in each of the following:
4. Use Rydberg equation to calculate the wave length of the spectral line in hydrogen that would result when an electron drops from the Fourth Bohr orbital to the second.
5.Discuss the contribution of the following scientist towards the classification of the elements; Dobereiner, Newlands; Mandeleev.
6.Use the periodic table to writing the complete configuration of these elements: P, Ni, As, Ba, Rh. Ho, Sn
7. For the above metals give your opinion about their, Ionic Radii, Metallic and non metallic characteristics.