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Periodic Table of Elements

Horizontales
An element that is completely nonreactive
The bending of light as it passes through a different medium
A systematic arrangement of the elements in order of increasing atomic number
An element which is necessary for life to be sustained
A chemical reaction in which a substance combines with oxygen
Verticales
Produced when atoms split
An atom or group atoms that are charged by gaining or losing electrons
Elements that naturally produce nuclear energy
A group of elements that are non-reactive
A group of highly reactive elements