An electron in the outer shell associated with an atom

Subatomic particle with a negative charge.

Subatomic particle with no charge

A representation of a substance using symbols for its elements

A representation of a chemical reaction using the symbols

A process that leads to the chemical transformation of one set of chemical substances to another

States that mass is not created or destroyed in a closed system.

Diagrams in which the valence electrons of an atom are shown as dots distributed around the element's symbol

Small number written after the symbol of each element.

The large number written at the beginning of a chemical formula.

The ingredients before a reaction takes place.

The new substances formed by a chemical reaction.

The process by which water and carbon dioxide are converted into sugar and oxygen.

The process by which sugar and oxygen are converted into water and carbon dioxide.

Means to move from one place to another.

Means to change into another substance.

Element that conducts some heat and electricity, has a shiny luster, and breaks easily. This element is most likely a 

The process in which plant cells make energy