What is anything that has mass and takes up space
matter
The smallest chemical unit of matter
atoms
All atoms of the same ____ have similar properties
element
The outermost level of electrons is called
valence electrons
When you have 2 substances that retain their individual properties
A mixture
The 3 states of matter are...
solid, liquid, gas
Atoms are comprised of 3 smaller components:
______ , _______, _______
Protons, neutrons, electrons
How many protons does this atom of potassium have?
19
When atoms share electrons the create a bond called a ________ bond.
Covalent
A change that affects the type of molecules or atoms in a substance
chemical change
The temperature at which a solid becomes a liquid is called its ______
melting point
Protons have ____ charge, electrons have a ______ charge, and Neutrons have a ______ charge
positive, negative, neutral
Two or more atoms linked together to make a substance with unique properties
molecule
Atoms with an overall charge are called ______
Ions
Ph stands for
Potential for hydrogen
The pressure and ____ of a material will determine whether that material is a solid, liquid, or gas
Temperature
If an oxygen atom has 8 protons, how many electrons and neutrons does it have?
8,8
In ozone or O3, how many atoms of oxygen make up on ozone molecule?
3
An _______ _______ forms when ions are attracted to each others opposite charged ion
ionic bond
Is a ph of 2 and acid or base?
acid
The temperature a gas becomes a liquid is its ____
condensation point
Electrons spin around the outside of the nucleus of an atom in what are called _____
Orbitals, energy levels, electron cloud
What are the abbreviations for the two elements that make up Salt, or sodium chloride
Na, Cl
Cations and Anions
These 3 properties describe a(n) ______
Chalky and bitter taste, feels slippery, receives hydrogen ions
Base