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The Periodic Table of The Elements

Teacher: Kastanis
Across
The smallest part of a compound that has the same properties of the compound.
Make up most elements on the periodic table that share properties such as ability to conduct heat and malleable.
The horizontal rows of a periodic table.
Reactive group 2 elements.
The ability of a substance to be hammered into thin sheets.
Represents the number of protons in an atom
Characteristics that help identify a particular type of matter that can be observed without changing the type of matter.
The idea that properties change in predictable patterns as you move across rows of the Periodic Table.
Elements with complete outer shells that do not react in nature.
The electrons found in the outer most enery level of an atom.
A pure substance made up of only one type of atom.
Down
A group of elements found on the right side of the periodic table and are commonly found in living organisms.
Describes an atom that wants to form chemical bonds in nature.
Group 17 elements that gain 2 electrons when they form chemical bonds.
Characteristics of a substance that cab been seen as the substance is going through a chemical change.
The ability of a substance to be pulled out into thin strands.
Groups 3 through 12 elements who's properties are variable but are all considered metals.
The vertical columns or groups of the periodic table.
Describes an atoms ability to gain electrons during chemical reactions.
Group one elements that all share properties and have one valence electron.
Elements that are found along the zig zag line of the periodic table and may have both metal and nonmetal properties.
Represents the number of protons and neutrons in an atom.
A physical property that describes how much matter is packed into a given volume of a substance.
The smallest particle of matter that has the properties of a particular type of matter.
Atoms that have become charged due to gaining or losing an electron.
Forms of an atom with different numbers of neutrons but always the same number of protons