Chemistry Sem. 1 Final Review Crossword

Change from gas to solid.
Change from solid to gas.
Change from gas to liquid.
A mixture where you cannot see the different parts.
The subatomic particle with the smallest mass.
The SAME element but with different number of neutrons.
A material that is brittle and a bad conductor.
Each new element is identified by its number of ____.
Made up of 2 or more different elements.
A bond made with 2 of the same element.
He discovered the electron using gas tubes.
He thought the atom was like a solar system.
He discovered the nucleus was positively charged using gold foil and alpha particles.
He thought of general areas that electrons most probably can be found mathematically.
He first came up with the idea of an atom.
This family is next to the noble gases.
The letter s, p, d, and f each represent a ___ in an atom.
The d subshell in an atom has 5 ____.
When you add the protons and neutrons together you get the ___ number.
The amount of matter in a certain space.
The amount of space an object takes up.
When the proton # does not equal the electron # the atom is considered __.