9 - Module 4 Lesson 3: quiz

Hydrogen and alkali metals are very reactive.

• True
• False

How many valence electrons do the alkali metals have?

• 1
• 2
• 8
• the number varies

Which of the following properties is/are shown by Group 1A elements?

• All of the above
• They are soft
• They are light metals
• They are silver-white

Alkaline earth metals are the most reactive metals.

• True
• False

All of the following are alkaline earth metals except

• sodium
• magnesium
• barium
• calcium

All transition elements are metals.

• True
• False

Which of the following is not a property of most transition metals?

• low melting point
• ability to conduct electricity
• ability to conduct heat
• malleability

Transition metals are high in density and very hard.

• True
• False

Halogens are very reactive.

• true
• false

All noble gases are

• colorless
• tasteless
• radioactive
• odorless