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;
6 Cards in this Set
- Front
- Back
Chemical Reactions |
Take place due to the movement of electrons Eg. burning of fossil fuels |
|
Protons |
Atomic number Top number on data sheet Bottom number on equations/questions Usually the smaller number |
|
Neutrons |
Mass number - atomic number |
|
Electrons |
Equals protons in a stable element Written (-x) in an unstable radioisotope |
|
Mass number |
Protons + Neutrons Bottom number on data sheet Too number in equations/questions Usually bigger number |
|
Stable vs unstable |
A stable (neutral) atom will have the same number of protons and electons
An unstable atom will have different number of electrons to the protons of its element |