Periodic Table
Name for the rows on the periodic table
Periods
This type of reaction involves a compound breaking down into two or more simpler substances.
Decomposition
This is the term for an atom or molecule with an overall positive or negative charge due to the loss or gain of electrons.
Ions
This term describes the number of protons in the nucleus of an atom and defines the element.
Atomic number
What type of bond is it when electrons are transferred?
Ionic
Group number for noble gases
8
In the balanced equation for the combustion of methane, CH₄ + 2O₂ → CO₂ + 2H₂O, how many molecules of water are produced?
2
This type of ion has more protons than electrons, giving it a positive charge
Cations
This element has an atomic number of 6, which means every atom of it has 6 protons
Carbon
This subatomic particle has a positive charge and is found in the nucleus of an atom.
Proton
The group number of Alkali metals
one
This factor increases the rate of a reaction by lowering the activation energy.
Catalyst
The name of the ionic compound when calcium and chlorine combine.
Calcium Chloride
Atoms of the same element with different numbers of neutrons have different atomic masses and are called this.
Isotopes
The mass of electrons
0
The number of protons that Mg has
12
This type of reaction releases energy into the surroundings, often in the form of heat.
Exothermic
This common polyatomic ion has the formula NO3− and is often found in fertilizers.
Nitrate
What part of the atomic structure represents the atomic mass?
Nucleus
This type of reaction absorbs heat from its surroundings, often causing the surroundings to feel cold.
Endothermic
The number of electron shells that Nitrogen has
2
List the five pieces of evidence that a chemical reaction has occurred:
Color Change, Formation of a Gas, Formation of a Precipitate, Temperature Change, Emission of Light
This rule states that atoms will gain or lose electrons to achieve a full outer shell, typically aiming for eight valence electrons. (hint: 8)
Octet Rule
How do you calculate neutrons
Atomic mass - atomic number
What side of the periodic table typically forms anions?
Right (non-metals gains electrons)