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Science Crossword Puzzle

Author: Jackson Koval
Across
Forms when atoms share one or more electrons
Particle with a positive or negative charge
Interaction that holds atoms or ions together
Group of atoms held together by chemical bonds
A mineral held together by ionic bonds
Force that brings oppositely charged ions together
This change causes leaves to change color during the fall
This metal is used to conduct electric current
The transfer of energy as heat through a material
Down
Electrons in the outermost energy level
The number of protons and neutrons in an element
The arrangement of the elements in order of their atomic numbers
These molecules are held together by covalent bonds
Forms between metal atoms when their outermost energy levels overlap
The number of protons and electrons in each element
Made up of two hydrogen atoms bonded to one oxygen atom
This model shows electrons in energy levels