List 1
The basic particle from which all elements are made
atom
Nickname for Group 18 elements, which DO NOT like to react or form bonds
noble gases
Type of chemical reaction in which energy is RELEASED (-Δ H)
exothermic reaction
different forms of the same element that contain the same number of protons but different number of neutrons
isotope
Substance that forms as a result of a chemical reaction (right side of reaction)
product
Positively charged subatomic particle found in the nucleus of an atom
proton
A mixture in which pure substances are unevenly distributed throughout the mixture
Heterogenous mixture
type of bond formed between nonmetals
covalent bond
A horizontal row of elements in the periodic table
period
Substance that exists before a chemical reaction begins (left side of reaction)
reactant
A pure substance made of two or more elements chemically combined
Compound
We use this word to describe when a substance is mixed with water
aqueous (aq)
Type of electrochemical cell that REQUIRES energy to plate objects like keys, silverware, jewelry, etc.
electrolytic cell
Elements in the same vertical column of the periodic table
group
Organic compounds that ONLY contain hydrogen and carbon atoms
hydrocarbons
anything that has mass and takes up space
matter
A change of state (phase change) from liquid to gas
vaporization
type of bond formed between metals and nonmetals
ionic bond
The number of protons in the nucleus of an atom
atomic number
type of intermolecular force that exists between Hydrogen and F, O, N
hydrogen bonding
A pure substance that cannot be broken down into other substances by chemical or physical means
element
A compound which dissolves in water to form a solution that will conduct electricity due to the presence of ions
electrolyte
The outermost shell of an atom
valence shell
The number of protons and neutrons in the nucleus of an atom
atomic mass number
the amount of energy needed for a chemical reaction to get started
activation energy