Unit 2 Student Review

What is group 18 called on the periodic table?

• Halogens
• Noble Gases
• Alkaline Metals
• None of the above

What does the number above the element represent?

• Nothing
• Nothing
• Atomic Number
• nothing

What is group 1 known as on the periodic table?

• Alkali Metals
• Alkaline Earth Metals
• Transition Metals
• Halogens

Who the most known person for creating the design of the periodic table?

• Dmitri Mendeleev
• Thomas Hobbes
• Huncho
• Gizmo

How do you tell how many valence electrons are in an element?

• Look at the column number
• Ask Huncho
• Look at the number above the element
• Ask Daniel L.

How should you smell something in the lab?

• Waft it towards you
• Smell it directly
• Put your nose in it
• None of the above

How many neutrons are in Cobalt

• 23
• 36
• 53
• 32

How many valence electrons do Selenium have?

• 5
• 6
• 3
• 2

what group is an Halogen?

• 4
• 6
• 17
• 1

what is the least reactive alkali metal?

• Li
• Rb
• Fr
• K