Periodic Families

By Andrew Nelson

Periodic Families

Objectives

​Some text here about the topic of discussion.

• List the key features of each family in the periodic table

• ​Explain why groups have similar characteristics

Multiple Choice

Groups in the periodic table run ____________

• horizontally

• vertically

​Groups are also called families

• ​Group vs Period

• ​Why might a group also be called a family?

  • ​Characteristics

    • ​aka valence electrons

• ​Representative Elements

  • ​Groups 1, 2, 13-18

• ​Transition Elements

  • ​Groups 3-12

Groupings in the Table

7 Groupings of the Table

Metals

• ​Alkali Metals

• ​Alkaline Earth Metals

• ​Transition Metals

• ​Inner Transition Metals

​Nonmetals

• ​Halogens

• ​Noble Gases

Metalloids

• ​Just who they are

Multiple Choice

Each Group or "family" has one thing in common that gives them their characteristics. What is it?

• The number of protons

• The number of electrons

• The number of neutrons

• The number of valence electrons

Open Ended

How many groupings are in the periodic table?

Metals

• Most are malleable and ductile

• Generally shiny and smooth

• Solid at room temp

• Good conductors​

Metals

• ​"Lithium Family"

• ​Very Reactive

  • ​This means they exist in compounds with other elements

  • ​Example: NaCl

• ​Not Hydrogen

Alkali Metals

Metals

• ​"Beryllium Family"

• Also ​Very Reactive

Alkaline Earth Metals

Metals

• ​Lanthanides and Actinides make up inner transition metals

• ​Elements from the Lanthanide series are use as phosphors

  • ​Emit light when electrons strike them

• ​Titanium is a transition metal. Used in bicycles because it is strong yet light

Transition & Inner Transition Metals

NonMetals

• Generally gasses

• OR brittle, dull looking solids

• ​Poor Conductors

• ​Only nonmetal that is liquid at room temp is Bromine

NonMetals

• ​Group 17

• ​Often found in compounds because they are highly reactive

• ​Example: Flourine found in toothpaste or water

Halogens

NonMetals

• ​Group 18

• Very Unreactive

• ​Used in lasers, light bulbs, neon signs

Noble Gases

Metalloids

• Semimetals

  • ​Have physical and chemical properties of both metals and nonmetals

  • ​Silicon and Germanium are important in the making of computer chips

Multiple Choice

Which element grouping is the most unreactive?

• Halogens

• Alkali Metals

• Transition Metals

• Noble Gases

Multiple Select

Which two Groupings are the most reactive and therefore usually exist as compounds?

• Alkali Metals

• Alkaline Earth metals

• Halogens

• Transition metals

Fill in the Blanks

The halogens have

valence electrons (type the number)

Poll

Would you like in class time to be set aside for you to finish your notes?

• Yes please!

• No I like to do it at home