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Chem. Ch. 2 Review

facts on the periodic table

Elements are organized in the periodic table by the number of protons their atoms contain.
An element has a very low boiling point and very low reactivity would be found in the far right column
Noble gases like Helium and Neon share the property of normally being unreactive with other elements.
Basic compounds is made up of one carbon atom to every two oxygen atoms Carbon Dioxide
The properties of the majority of the elements in the far left column of the periodic table are highly reactive.
Iron, zinc and lead can be classified in the mineral group metals
Group 18 Noble gases
The elements in columns that have similar characteristics groups
The horizontal row across the table period
Group 1 or the alkali metal family Reactive Metals
These elements are less reactive and can be found in groups 3-12 Transition Metals
The central core of the atom that contains protons and neutrons nucleus
Elements in the same column, up and down families
Protons have a positive charge
These elements are placed at the bottom of the chart so that the table is not too long Lanthanide and Actinide
In the space around the nucleus these move around and carry a negative charge electrons
Group 17, also known as the halogen family Reactive Non-metals
The model of the atom is not a true representation of the atom due to the fact that the electrons move about randomly and rapidly. The size of the atom is also incorrect.
Created by: crumsey



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