Chapter 8 Summary
• Dmitri Mendeleev is credited with creating the Periodic Table of the Elements.
• The rows on the Period Table are called Periods.
• The columns are called Groups or Families.
• Atoms strive for stability and this is synonymous with having a full valence shell.
• Atoms can lose electrons to empty the outer shell or gain electrons to fill the outer shell.
• There are some definite trends on the Periodic Table in terms of atomic radius, electron affinity, and ionization energy. Most of these trends run from the bottom left of the table to the top right.
• The Metals appear on the left of the Periodic Table. The non-Metals are on the right. They are separated by the Metalloids.
• Metals tend to lose electrons to become more stable. Non-Metals tend to gain electrons.
• Dmitri Mendeleev is credited with creating the Periodic Table of the Elements.
• The rows on the Period Table are called Periods.
• The columns are called Groups or Families.
• Atoms strive for stability and this is synonymous with having a full valence shell.
• Atoms can lose electrons to empty the outer shell or gain electrons to fill the outer shell.
• There are some definite trends on the Periodic Table in terms of atomic radius, electron affinity, and ionization energy. Most of these trends run from the bottom left of the table to the top right.
• The Metals appear on the left of the Periodic Table. The non-Metals are on the right. They are separated by the Metalloids.
• Metals tend to lose electrons to become more stable. Non-Metals tend to gain electrons.