CH.2 Part 1 Matter and Atomic Structure Vocab Crossword

Air, Water, Soil are examples of _______________ which must have a mass and take up space.
A pure substance that cannot be broken down by chemical means.
A pure substance made up of two or more elements that can be broken down by chemical means.
An aqueous solution of HCl is considered to be this type of mixture.
Sandy water is considered to be this type of matter.
Folding origami is an example of this type of change.
Alcohol's flammability is an example of a -
Density is considered a _______________ because it is unique to each substance and does not depend on how much of the substance you have.
Every atom of Aluminum will always have 13 of this type of positive subatomic particle found in the nucleus.
This subatomic particle can be lost or gained by an atom to create either a positive or negative charge.
Protons + Neutrons =
A neutral subatomic particle found in the nucleus that can change in different forms of the same element.
This number is the same as the number of protons, and identifies an element on the periodic table.
Copper-63 and Copper-65 are _________________ of copper, because they are two atoms of copper with different masses.
A weighted average of the various masses of the isotopes of an atom.