Quizziz Lesson: Periodic Table Groups & Periods

• Groups/Families run vertically (columns)

• Periods run horizontally (rows)

• Think about columns holding up a porch or building & rows are like what crops are planted in

• Groups are also called "families"

• There are 18 groups

• Groups share common characteristics/properties

What does it mean they share characteristics?

-> All group 1 elements explode in water.

-> All group 18 elements DON'T react.

Example: Fluorine (F) and Chlorine (Cl) are in the same GROUP (17), SO, they share the same PROPERTIES.

• There are 7 Periods

• Lanthanides & Actinides are in periods 6 & 7. They are usually placed underneath so the periodic table fits on one page

• Each row has the same number of energy levels to hold electrons

  • Period 1 = 1 energy level

  • Period 2 = 2 energy levels and so on......

• The periodic table is divided into 3 types of chemicals

  -> Metals

  -> Metalloids

  -> Nonmetals

• Metals are the largest group

• Metalloids are the smallest group between metals and nonmetals.

• Metals are on the left side of the table.

• Most of the periodic table is made up of metals

• Characteristics include:

  • malleable (can change shape)

  • ductile

  • shiny

  • conduct electricity & heat

• Metalloids are on the stairstep between metals and nonmetals.

• Characteristics include:

  • somewhat malleable

  • a little ductile

  • somewhat shiny

  • conductive at high temperatures

• Nonmetals are on the right side of the table.

• Characteristic include:

  • Dull

  • brittle (break easily)

  • non-conductors