Vocabulary
A substance that cannot be broken down into simpler substances by chemical means
What is an Element
The basic unit of a chemical element
What is an Atom
KCl
What is Potassium Chloride
Water vapor is an example of which type of matter
What is a Gas
How many elements are on the periodic table
What is 118
Spreading of particles throughout a given volume until they are distributed
What is Diffusion
A stable subatomic particle with a negative charge
What is an Electron
NaNO3
What is Sodium Nitrate
Ice is an example of which form of matter
What is a Solid
How many columns does the periodic table have?
What is 18
Something composed of two or more separate elements
What is a Compound
A stable subatomic particle with a positive electric charge
What is a Proton
N2O5
What is Dinitrogen Pentaoxide
Water is an example of which form of matter
What is a Liquid
What does the symbol AG stand for
What is Silver
A homogeneous mixture of two or more substances
What is a Solution
A subatomic particle without an electric charge
What is a Neutron
CaCO3
What is Calcium Carbonate
Atoms move the slowest when an object is in which state of matter
What is Solid
How many protons does boron have
What is Five
The bond formed by the sharing of a pair of electrons by two atoms
What is a Covalent Bond
The center of an atom is called
What is a Nucleus
Zn(NO3)2
What is Zinc Nitrate
Atoms move the fastest when in which state of matter
What is Gas
Who made the first version of the periodic table
Who is Dimitri Mendeleev