What is the name for the number of protons in an atom?
Atomic number
What is the name for the trend of atomic radius across a period?
Decreases
What is the name for a representation of elements in a compound?
Chemical formula
What is the name of the law stating that matter is conserved?
Law of conservation of mass
What is the name for the heat absorbed by a system?
Endothermic
What is the name for the atoms of the same element with different neutrons?
Isotopes
What is the name for the attraction an atom has for electrons?
Electronegativity
What is the name for the type of bond where electrons are shared?
Covalent bonding
What is the name for the process of making both sides of an equation equal?
Balancing equations
What is the name for the heat released by a system?
Exothermic
What is the name for the total number of protons and neutrons?
What is the mass number?
What is the name for the energy required to remove an electron?
Ionization energy
What is the name for the type of bond where electrons are transferred?
Ionic bonding
What is the name for the reaction where two substances combine?
Synthesis
What is the name for the minimum energy needed for a reaction?
Activation energy
What is the name for the for an unstable nucleus losing energy over time?
Nuclear decay?
What is the name for the energy required to remove an electron?
Shielding effect
What is the name for the electrons in the outermost shell?
Valence electrons
What is the name for the reaction where one element replaces another?
Single replacement
What is the name for the graph showing energy changes as a substance heats?
Heating curve
What is the name for the model that describes electrons in probability clouds?
Quantum mechanical model
Why do atoms get smaller across a period?
What is the name for the shape of a molecule with 4 bonding pairs
Terahedral
Why do atoms bond?
They do it to achieve stability or create a full valence shell
What is the name for the measure of disorder in a system?
Entropy