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;
27 Cards in this Set
- Front
- Back
|
chemistry
|
the study of matter
|
|
|
Atoms
|
smallest piece of an element
|
|
|
Elements
|
substances containing only one kind of atom
|
|
|
Protons
|
=+charge;in nucleus
|
|
|
Neutrons
|
=no charge,in nucleus
|
|
|
electrons
|
=-charge travel around nucleus
|
|
|
atomic mass
|
=protrons+neutrons=atomic mass
|
|
|
Shell
|
=space around the nucleus
|
|
|
1st shell
|
=hold 2 electrons
|
|
|
2nd shell
|
-hold 8 eclectrons
|
|
|
3rd shell
|
hold more than 8 electrons
|
|
|
atomic number
|
=how many protons there are in a nucleus
|
|
|
models of atoms
|
a theory of how atoms act in experiments
|
|
|
Niels Bohr
|
model of atoms
|
|
|
Elements
|
are classified,chemincal symbols,some are english and latin abbrevations
|
|
|
periodic table of the elements
|
atomic weights,rows,columns,
|
|
|
Chemical formula
|
shows what elements make up a compound uses symbols and numbers
|
|
|
Ion
|
atom that has gained or lost electricity
|
|
|
+ion
|
=atom has given electrons away(outer shell)
|
|
|
_ion
|
=gained electrons(outer shell)
|
|
|
Ionic bond
|
-+and-attract(kind of like magnets)
|
|
|
Acids
|
sour taste,some burn and dissolve metals,some digest food
|
|
|
Bases
|
taste bitter,fell slippery
|
|
|
Neutral
|
neither basic or acidic-like water
|
|
|
Indicator
|
changes color when exposed to and acid or base
|
|
|
Acid+base
|
neutralizes each other
|
|
|
Salt-+base ion
|
and -acid ions
|
