Reading...
Play button
Play button
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;
8 Cards in this Set
- Front
- Back
|
Matter
|
Anything that occupies space and has mass.
|
|
|
Element
|
A pure substance that cannot be broken down into other substances by chemical means.
|
|
|
Trace Elements
|
Elements that make up less that 0.01 percent of your body mass.
|
|
|
Atom
|
Smallest possible particle of an element.
|
|
|
Proton
|
A subatomic particle with a single unit of positive electrical charge.
|
|
|
Electron
|
A subatomic particle with a single unit of negative electrical charge.
|
|
|
Neutron
|
A subatomic particle with no electrical charge.
|
|
|
Nucleus
|
The central core of an atom made of neutral and positively charged ions.
|
