A physical state of matter with a definite volume and shape
The quantitative relationship among reactants and products
A physical state of matter that has a defined volume but not a defined shape
Elements in Group VII of the periodic table
A pure substance that cannot be broken down into simpler substances; the most basic form of matter
An arrangement of elements in order of increasing atomic number
A chemical reaction whereby an element or compound reacts with elemental oxygen
The representation of a chemical reaction using the symbols of the elements and the formulas of compounds
The core of an atom containing neutrons, protons, and most of the mass
The sum of the number of protons and the number of neutrons in an atom
The average of the isotopic masses of al lo fthe naturally occurring isotopes
A characteristic of an element
An element or compound in an equation that undergoes a chemical reaction
A change in physical state or dimensions of a substance that does not involve a change in composition
The making of a new product by combining two reactants together
A negatively charged subatomic particle; located outside of the nucleus
A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction
A strong force of attraction holding atoms together in a molecule or crystal, resulting from the sharing or transfer of electrons
A region of space where electrons exist; organized by energy levels
A physical state that neither has a definite shape or definite volume
Anything that has mass and takes up space
A positvely charged subatomic particle located in the nucleus of the atom