Periodic Table and Reactivity Practice Test

Which two elements are in the same Period?

• Lithium and Magnesium

• Potassium and Sodium

• Boron and Carbon

• Zinc and Nitrogen

Determine which atom is being describe her: shiny, has the properties of both metals and nonmetals, and has 3 valance electrons.

• Antimony (Sb)

• Tin (SI)

• Germanium (Ge)

• Boron (B)

Sodium (Na) is a highly reactive element. Which characteristic of sodium is responsible for its reactivity?

• Number of Protons

• It has one valance electron

• Atomic mass

• Nonmetal

An atom has 18 protons and 8 valance electrons. Which statement would best identify this element?

• The element is highly reactive with 8 electrons in its outer shell.

• The element is "happy" or stable because it outer energy level (shell ) is filled.

• The element has an atomic mass of 18.

• The element is a metal

How many valance electrons does Hydrogen and Sodium have in their outer shell?

What does the top number in this periodic table square represent?

What does the bottom number represent?

The two letters in the middle represent the ___________ __________.

What does the word at the top of the square represent?

What does the elements, O,S,Se,Te,Po,LV,Tm,Md, have in common.