Periodic Table Icosagens & Crystallogens FCP 23

Periodic Tables

Multiple Choice

How do you locate the Group on the Periodic table and which group does H (Hydrogen) belong too?

• Group 1

• Group 6

• Group 3

• Group 18

What I will learn today

• Describe the characteristic properties of Carbon (Crystallogens) family and Boron (Icosagens). Identify the location of metals in the periodic table. Explain how and why the reactivity changes in the periodic table.

Properties of Non Metals

• Not good conductor of heat

• Poor electrical conductors

• Brittle

• Dull (not metallic shiny)

• usually less dense compared to metals

Boron & Carbon Families

reactivity

Properties of Icosagens Boron/Aluminum Family

• Form Many Stable covalent compounds

• Relatively rare, except AL

• Wide range of melting points

• Wide range of boiling points

• Wide range of Densities

Icosagens 2 types of elements included in this group

• Metals

• Metalloids (Boron)

Icosagens Boron/Aluminum Family

• Group 13 or 3 A

• 3 valence (outer most shell) electrons

Multiple Choice

Which of these objects are malleable?

• Antique Ceramic Vase

• Steel Pole Fence Post

• Glass Table Top

• Marble Sculpture

Multiple Choice

Based on the physical appearance of the two crystal samples which is a metal?

• Sample A

• Sample B

• Sample A and B

Properties of Crystallogens (carbon) family

• Carbon exists as amorphous (no defined shape) soot, graphite, and crystalline diamond

• Germanium and silicon are semi-conductors

• Silicon and germanium are used in the computer industry

• Tin and lead are both conductors and form metal alloys

• Lead is used in batteries, ammunition, paint, and plumbing

Cyrstallogens Carbon Family

• Group 14 or 4 A

• 4 valence (outer most shell) electrons

• melting points and boiling points decrease with increased atomic mass

Cyrstallogens Carbon Family

• 4 Valence electrons

• Carbon makes up 18.5% of the human body and carbs, proteins, and fats contain it.

• Silicon is the second most abundant element in earths crust (sand clay, and glass)

Multiple Choice

What type of metal is Aluminum (Al) ?

• Group 1 or 1A Alkali Earth Metals

• Group 14 or 4A Carbon

• Group 13 or 3A Boron