Periodic Table Project

What group is lithium (L) part of?

• Alkali earth metals

• Alkali metals

• Transition metals

• Halogens

Is silicon a metal, metalloid, or nonmetal?

• Metal

• Nonmetal

• Metalloid

State the (group, period) of selenium (Se).

• (4,13)

• (16,4)

• (4,16)

• (3,18)

Halogens have which of the following properties? Check all that apply.

• Have 7 valence electrons

• Most reactive group on the periodic table

• Found in diatomic molecules

• Are all gases

This element is a poor conductor and has 6 valence electrons. Which one could it be?

• Carbon

• Phosphorus

• Calcium

• Oxygen

These elements have categories of both metals and nonmetals. They are

As you go down the GROUP of the periodic table, an element's atomic radius

• stays the same

• increases

• decreases

• doubles

As you go through a PERIOD of the periodic table, an element's atomic radius

• stays the same

• decreases

• increases

The reason atomic radius increases as you go down a group is because...

• energy levels are added

• energy levels are lost

• electrons are lost

• electrons are added

The reason an element's atomic radius decreases as you move through a period is because there are more protons which pull the electrons more tightly.

• True

• False