Chemistry

• The periodic table is divided into groups and periods.
• Elements within the same group have similar properties due to their electron configuration.
• Groups are vertical columns, while periods are horizontal rows.
• Metals tend to be found on the left side of the periodic table, while non-metals are located towards the right.
• Atomic number = protons
• Mass number = protons + neutrons
• Elements main goal when forming compounds is to have a full outer shell of electrons
• Ionic bonding occurs between metals and non-metals
• Covalent bonds occur between non-metals
• Hydrogen is the first element in the periodic table.