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8th Science

Teacher: Bowley
Across
A vertical column of elements in the periodic table
The law that states that the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements
An electron that is found in the outermost shell of an atom and that determines the atom's chemical peroperties
Group two of periodic table
One of the elements of group 18 of the periodic table
Down
In chemistry, a horizontal row of elements in the periodic table
An interaction that holds atoms or ions together
The combining of atoms to form molecules or ionic compounds
Group #1 of periodic table
One of the elements of group 17 of the periodic table
Describes something that occurs or repeats at regular intervals