Atoms
What is an Atom?
The basic building block of life
What is a compound?
What are the two types of mixtures?
Homogenous and Heterogenous
What is an acid?
A substance with a pH lower than 7 and has a higher concentration of H3O than OH-
How are the elements arranged on the periodic table?
By increasing atomic number
What are the three subatomic particles that make up an atom?
Protons, Neutrons, and Electrons
Is the following an element or a compound?
H2
Element
Heterogenous
What is Base?
A substance with a pH higher than 7 with a higher concentration of OH- than H3O.
What is the periodic table?
A chart showing all the elements arranged according to the repeating pattern of their properties
What charge does a neutron have?
Neutral
Is the following an element or a compound?
H2O
Compound
Milk in coffee is an example of which type of mixture?
Homogenous
Name that compound.
H3O+
Hydronium
What 4 pieces of information does the periodic table give us about each element?
Name, Symbol, Atomic Number, and Atomic Mass
Which two subatomic particles make up most of the atoms atomic mass?
Protons and Neutrons
What type of substance is always made up of a single type of atom?
An element
What does it mean for a mixture to be heterogenous
It can be physically separated like picking the olives out of your salad
Name that compound.
OH-
Hydroxide
What increases from left to right on the periodic table?
Valence electron number
What is an isotope?
Atoms with the same number of protons but different numbers of neutrons
What is one thing that elements and compounds have in common?
They are both pure substances (can only be separated by chemical means, not by physical)
They are both made of atoms
What does it mean for a mixture to be homogenous?
It can only be separated through chemical means
What two byproducts are produced during the neutralization of acids and bases?
Water and salt
Which group of elements on the periodic table are most stable?
The Noble Gases