Chemistry Ch 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| What did Max Planck do? | Developed the first quantum theory, proposed that energy is emitted from matter as electromagnetic radiation in discrete bundles called quanta.
🗑
|
||||
| What is the equation derived by Planck? | E=hf, where h is planck's constant 6.626 x 10^-34 Js, f is the frequency of radiation.
🗑
|
||||
| What are Bohr's assumptions about a hydrogen atom? | That it is a central proton and an electron traveling in circular orbit, and that the centripetal force on the electron is the electrical force between the proton and electron.
🗑
|
||||
| How does Bohr use Planck's quantum theory to correct older assumptions about electrons? | He placed restrictions on the value of the angular momentum of the electron revolving around the hydrogen nucleus. He predicted that the angular momentum of an electron is quantized according to L=nh/2π.
🗑
|
||||
| What is the electron energy equation derived by Bohr? | E=-Rh/n^2 (rh is the Rydberg constant, 2.18x10^-18 J/electron).
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
schoe
Popular MCAT sets