CHemistry Chapter 4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| JJ Thompson | Experiment is the Cathode created in 1897.
🗑
|
||||
| How JJ Thompson knew the ray was composed of negatively charged particles. | Cathode are deflected by a magnetic field in the same way a wire carrying an electric current which is known to have a negative charge.
🗑
|
||||
| The presence of a negatively charged particle within a neutral structure such as the atom is an indication of what? | The rays are deflected away from a negatively charged object.
🗑
|
||||
| Elements are composed of tiny particles called? | Atoms
🗑
|
||||
| Atoms of any element are____ from those of any other element. | Different
🗑
|
||||
| Atoms of different elements can form ___ by combining in whole-number rations. | Compounds
🗑
|
||||
| Chemical reactions occur when atoms are? | Separated, joined, or arranged.
🗑
|
||||
| Atoms of one element change into atoms of another element during chemical reactions. Always true, never true, sometimes true. | NT
🗑
|
||||
| Atoms combine in one-to-one ratios to form compounds. AT,NT, ST | ST
🗑
|
||||
| Atoms of one element are different from atoms of other elements. AT, NT, ST | AT
🗑
|
||||
| Atom | the smallest particle of an element that retains its identity in a chemical reactions.
🗑
|
||||
| Scanning Tunneling microscope | an instrument used to generate images of individual atoms.
🗑
|
||||
| John Dalton | English chemist and schoolteacher who formulated a theory to describe the structure and chemical reactivity of matter in terms of atoms.
🗑
|
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:
taytay6161
Popular Chemistry sets