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Periodic Table Crossword

By: Nayan Iyer
Period 3
10/16/18
Across
Elements that are okay conductors of heat and electricity
Group 17
Atoms that have the same number of protons
A horizontal row of elements on the periodic table
The process of adding, and subtracting of neutrons
Atomic Mass Unit
Elements that are good conductors of heat and electricity
A neutral particle
A negatively charged ion
The center of an atom
An atom that has gained, or lost an electron
Down
The father of the atomic theory
A vertical column of elements on the periodic table
Preformed the gold foil experiment
A negatively charged particle
A positively charged particle
Discovered the electron
An atom that has gained, or lost one neutron
The smallest particle that has properties of an element
A positively charged ion