Review for 9wk CA
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| The nucleus of an atom is: | positively charged and has a high density.
🗑
|
||||
| Gold Foil Lab discovered the nucleus. What new model of the atom resulted? | A model in which the region outside the nucleus is largely empty space in which the electrons are situated.
🗑
|
||||
| How many protons, electrons, and neutrons does an atom with an atomic number 35 and a mass number 75 contain? | 35 protons, 35 electrons, and 40 neutrons.
🗑
|
||||
| All atoms of the same element have the same: | number of protons
🗑
|
||||
| The number of neutrons in the nucleus of an atom can be calculated by: | Subtracting the number of protons from the mass number.
🗑
|
||||
| Which scientist developed the Plum Pudding Model of the atom? | JJ Thomsom
🗑
|
||||
| EMISSION of light from an atom occurs when the electron: | Drops from a higher to a lower energy level.
🗑
|
||||
| Who discovered that all matter contained electrons, e-? | JJ Thomson
🗑
|
||||
| Express the product of 2.0 mm and 5.25 mm using the correct number of significant digits. | 11 mm2
🗑
|
||||
| What is an example of an intensive property of matter? | malleability
🗑
|
||||
| AM Radio Station broadcast at a frequency of 1.0 x 10^6 hertz. What is this station’s wavelength? | 3.0 x 10^2 m
🗑
|
||||
| The common isotope of an element goes on the (top/bottom) of the isotope symbol. | top
🗑
|
||||
| The atomic number of an element goes on the (top/bottom) of the isotope symbol. | bottom
🗑
|
||||
| The atomic number is equal to... | protons (also electrons)
🗑
|
||||
| The mass number is equal to... | neutrons + protons
🗑
|
||||
| The number of neutrons is equal to... | mass number - protons (electrons)
🗑
|
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:
punisher42
Popular Chemistry sets