| A | B |
|---|
| Electron | Carries a single negative charge |
| Proton | Carries a single positive charge |
| Neutron | Carries mass but no charge |
| ATP | Major energy molecule for life |
| Electrical energy | Result of ion interactions in cells |
| One | Mass of a proton |
| Atom | Smallest unit of matter |
| Hydrogen | Most common element |
| Deuterium | Hydrogen with one neutron |
| Orbital | Home to electrons around atoms |
| Carbon | Most basic element of life |
| Tritium | Hydrogen with two neutrons |
| Atomic number | Number of protons per atom |
| Atomic mass | Number of protons plus neutrons per atom |
| Ion | An atom with unequal number of protons and electrons |
| Positive ion | Atom that has lost electrons |
| Negative ion | Atom that has gained electrons |
| Isotope | Atom that has different number of neutrons |
| Molecule | Two or more bound atoms |
| Solvent | Substance that dissolves things |
| Solute | Substance dissolved in solvents |
| Ionic bond | Forms when an electron is donated |
| Covalent bond | Forms when electrons are shared |
| Natrium | Latin name for sodium |
| Kalium | Latin name for potassium |
| Ferrum | Latin name for iron |
| Chloride | Term for a chlorine ion |
| pH | Measure of hydrogen in solution |
| HCl | Hydrochloric acid |
| NaOH | Sodium hydroxide |
| pH 2 | Strong acid |
| pH7 | Neutral substance |
| pH13 | Strong base/ alkalai |
| pH 7.3 | Normal blood pH |
| Bicarbonate | Increases pH in body |
| Peptide bond | Links amino acids together |
| Peptide chain | A protein molecule |
| Carbohydrate | Molecule that contains only H, C, and O |
| Denature | Change the molecular shape |
| Enzyme | Protein catalyst |
