The Periodic Table

• Elements are the building blocks of all substances.
• Elements cannot be broken down into simpler substances by chemical means.
• Each atom has negatively charged electrons orbiting a positively charged nucleus.
• There are eight groups in the periodic table.
• There are seven periods in the periodic table.
• Non-metals do not conduct electricity or conduct heat.
• Non-metals have low boiling and melting points.
• Non-metals are not ductile or malleable.
• Elements go from being metals to non-metals from left to right on the periodic table.
• Many elements in groups 3, 4, and 5 show both metallic and non-metallic properties.
• Metals conduct both electricity and heat.
• Metals have high melting and boiling points.
• Metals are both malleable and ductile.
• Dmitri Mendeleev was the first person to arrange the elements into the layout of the periodic table.
• Each of the elements are arranged into groups based off reactivity.
• The periodic table is arranged in by increasing atomic number.
• In balanced equations, no elements are destroyed, they are only rearranged.