Atomic Basics
An atom has more electrons than protons.
What is an anion?
The bond type formed by the transfer of electrons.
What is an ionic bond?
The weakest type of intermolecular force.
What is London dispersion force?
The first step in any stoichiometry problem.
What is balancing the chemical equation?
The principle stating that matter is neither created nor destroyed in a chemical reaction.
What is the law of conservation of matter?
The particles that differ between isotopes of the same element.
What are neutrons?
The bond type formed between two nonmetals.
What is a covalent bond?
The intermolecular force responsible for water’s high boiling point.
What is hydrogen bonding?
What coefficients represent in a balanced chemical equation.
What are mole ratios?
Why the number of each type of atom must be the same on both sides of a chemical equation.
What is atoms are conserved during reactions?
Why elements in the same group of the periodic table behave similarly.
What is having the same number of valence electrons?
Why sodium chloride has a higher melting point than carbon dioxide.
What is ionic bonding being stronger than covalent molecular forces?
Ranking intermolecular forces from weakest to strongest.
What is London dispersion, dipole–dipole, then hydrogen bonding?
The role of the limiting reactant in a chemical reaction.
What is determining the maximum amount of product formed?
Why coefficients, not subscripts, are changed when balancing chemical equations.
What is changing subscripts would change the substances involved?
How an atom becomes a cation without changing its number of protons.
What is losing electrons?
Explaining polarity in a covalent bond.
What is unequal sharing of electrons due to electronegativity differences?
Why boiling breaks intermolecular forces but not covalent bonds.
What is intermolecular forces being weaker than covalent bonds?
Converting grams to moles using molar mass.
What is dividing by the molar mass?
How balancing a chemical equation supports accurate stoichiometric calculations.
What is it ensures correct mole ratios based on conserved atoms?
Predicting ion charge using an element’s position on the periodic table.
What is using valence electrons to determine charge?
Explaining metallic bonding using the sea of electrons model.
What is delocalized valence electrons allowing conductivity and malleability?
Comparing intermolecular and intramolecular forces.
What is intermolecular forces act between molecules and intramolecular forces act within molecules?
Why chemical equations must be balanced before calculations.
What is to ensure conservation of mass and correct mole ratios?
Explaining how conservation of matter applies even when mass appears to be lost, such as in a reaction that produces a gas.
What is matter is still present but may leave the system?