Periodic Table Crossword

Can be observed without a reaction eg. density, mass, color
Describes how a material reacts with another substance eg. corrosivity, flammability
Group (family) #1, extremely reactive, soft metals
Family of reactive non-metals
Family of non-reactive gasses
Group#2, reactive metals with 2 valence electrons
Vertical columns on the periodic table
Horizontal rows on periodic table
Russian scientist, developed the periodic table
Chemical bond where electrons are given away
Chemical bond where electrons are shared
The number of protons in the nucleus
Relative weight of the atom, protons and neutrons together
Subatomic particle with negative charge, outside the nucleus
Outer energy shell
Subatomic particle, in nucleus, neutral charge
Diagram showing electrons in each energy shell
Made of 2 or more different types of atoms
Made of only 1 type of atom
Made of multiple atoms, can be a compound or an element
Shorthand way of writing which atom and its proportion