Subatomic Particles
Negatively charged subatomic particle
What is an ELECTRON?
The smallest particle of an element that exists by itself
What is an ATOM?
Substances that are present at the beginning of a chemical reaction
What are REACTANTS?
3O3
(3 x 3) = 9
A charged atom
What is an ION?
Positively charged subatomic particle
What is a PROTON?
Two or more elements and/or compounds occupying the same space
What is a MIXTURE?
Reactants -------> _____________
What are PRODUCTS?
5O2
(5 x 2) = 10
This particle stabilizes the atom
What is a NEUTRON?
The number of this subatomic particle determines the identity of an element
What is a PROTON?
What is an ELEMENT?
Various answers (change in color, temperature, formation of a gas/solid/liquid, etc.)
3H2O
(3 x 2) + (3 x 1) = 9
The dense region at the center of an atom, which contains protons and neutrons
What is the NUCLEUS?
This subatomic particle has a very small mass
What is an ELECTRON?
Two or more DIFFERENT elements bound together
What is a COMPOUND?
The number before a reactant or product, for example the 2 here: 2HCL
What is a COEFFICIENT?
8CCl4
(8 x 1) + (8 x 4) = 40
8 + 32
The area around the nucleus which contains electrons
What is the ELECTRON CLOUD?
These subatomic particles each have a mass of 1 amu (atomic mass unit)
What are NEUTRONS and PROTONS?
2 or more atoms bound together
What is a MOLECULE?
This principle states that in a chemical reaction, the same number and type of atoms exist in the reactants as in the products.
What is the CONSERVATION OF MASS principle?
2C6H12O6
(2 x 6) + (2 x 12) + (2 x 6) =
12 + 24 + 12 = 48
What is a NEUTRAL ATOM?