The Periodic Table

How many valence electrons are in an atom of Ba?

• 2
• 8
• 4
• 1

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How many valence electrons are in an atom of P?

• 4
• 5
• 2
• 3

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What is the name of the family that is highlighted?

• Alkali Metal Family

• Halogen Family

• Noble Gas Family

• Transition Metal Family

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Which element has 3 valence electrons?

• A

• B

• E

• C

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Which elements have the same number of valence electrons?

• A & C
• E & C
• F & A
• F & B

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Which element belongs to the group that is made up of only gases?

• D
• L
• E
• A

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List the two most reactive families on the periodic table.

• Alkali metals & Transition Metals
• Noble gases & Oxygen Family
• Halogens & Alkali metals
• Halogens & Noble gases

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Mendeleev classified elements based on not only atomic mass but what else?                                                   

• reactivity
• boiling points
• physical properties only 
•  chemical & physical properties

Why were there blank spaces left in Mendeleev's periodic table?                                              

• He didn't know what to put there.
•  Undiscovered elements not yet known.
• Multiple elements could have fit
• He forgot to add the elements in.

Which of the following is the most metallic element in period 3?

• Boron (B)
• Sodium (Na)
• Argon (Ar)
• Silicon (Si)

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