Lesson 10: The Periodic Table

They are vertical columns

They are numbered 1-18

Elements in the same group have the same number of valence electrons

Elements in the same group have different chemical properties

The number of valence electrons increases

The number of valence electrons decreases

The number of valence electrons stays the same

The number of valence electrons alternates

Most metals are found on the right side of the periodic table.

All metals are liquids at room temperature.

Metals are generally good conductors of electricity.

Metals are usually dull in appearance.

Non-conductor of electricity in solid form

Brittle solids

Malleable

Lack the luster of metals

Metalloids have properties of both metals and nonmetals.

Metalloids are found only in Group 1 of the periodic table.

Metalloids are located between metals and nonmetals on the periodic table.

Metalloids are all gases at room temperature.

They are soft, silver-coloured solids that react violently with water.

They are gases at room temperature.

They are found in the transition metals group.

They have 2 valence electrons.

They conduct electricity.

They are solid at room temperature.

They are gases at room temperature.

They easily lose 2 valence electrons.

Fluorine

Helium

Zinc

Bromine