Regions in the Periodic Table

• A horizontal row in the periodic table.

  Period
• A vertical column in the periodic table.

  Group
• Elements in the main groups (1, 2, 13-18) with predictable properties.

  Representative
• Elements in the middle of the periodic table, often metals, that show variable properties.

  Transition
• Elements with properties of both metals and nonmetals.

  Metalloids
• In the periodic table, the vertical or column part is known as Group or Family.
• In the periodic table, the horizontal or row part is knows as Period or Series.
• In the modern periodic table, we have 18 groups.
• The common name of Group 1.

  Alkali Metals
• The common name of Group 2

  Alkaline Earth Metals
• The common name of Groups 3-12

  Transition Metals
• The common name of Group 13

  Icosagens
• The common name of Group 14

  Tetragens
• The common name of Group 15

  Pnictogens
• The common name of Group 16

  Chalcogens
• The common name of Group 17

  Halogens
• The common name of Group 18

  Noble Gases
• Soft metals, very reactive, Group 1

  Alkali Metals
• Middle metals, good conductors, Groups 3-12

  Transition Metals
• Harder metals, reactive, Group 2

  Alkaline Earth Metals
• Stable, inert gases, rarely react

  Noble Gases
• Very reactive, nonmetals, form salts

  Halogens
• Group of boron and soft metals

  Icosagens
• Group of carbon and metals/metalloids

  Tetragens
• Oxygen group, reactive metals and nonmetals

  Chalcogens
• Nitrogen group, mostly nonmetals

  Pnictogens
• Identify their type.

  A) Representative

  B) Transition

  C) Inner Transition

  
• In the modern periodic table, we have 7 periods.