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

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