Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
13 Cards in this Set
- Front
- Back
|
Heterogeneous mixture |
A mixture that is not evenly mixed |
|
|
Homogeneous mixture |
A mixture that is evenly mixed |
|
|
Substance |
Matter with a composition that is always the same |
|
|
Dissolve |
To form a solution by mixing evenly |
|
|
Concentration |
The amount of substance per volume |
|
|
Mixture |
Matter that can vary in composition |
|
|
Rutherford |
Discovered the nucleus |
|
|
Chadwick |
Discovered neutrons in the nucleus |
|
|
Bohrs model |
Model states that electrons orbit the nucleus |
|
|
Modern atomic model |
States that electrons are in an electron cloud |
|
|
Isotope |
Any two or more atoms of the same element that have different amounts of neutrons |
|
|
Ion |
An atom that is no longer neutral because it has gained or lost electrons |
|
|
Thomson |
Discovered electrons |
