CUA 2 Review: Electrons and The Periodic Table

Periods are in

• horizontal rows.

• vertical columns.

Groups are in

• horizontal rows.

• vertical columns.

The number of valence electrons can be determined by the group.

• True

• False

Tags

NGSS.HS-PS1-1

The atomic number increases as you move from the top to the bottom in a group.

• True

• False

Which of the following is the correct Lewis Valence dot structure for oxygen?

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• 
• 
• 

Which of the following is the correct Lewis Valence dot structure for lithium?

• 
• 
• 
• 

Which of the following is the correct Lewis Valence dot structure for boron?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

Which of the following is the correct Lewis Valence dot structure for neon?

• 
• 
• 
• 

Which of the following is a physical property that Mendeleev used to design the periodic table?

• oxidation rate

• reactivity with metals

• crystalline structure

• atomic mass

Which of the following best describes the elements within the group of the periodic table that contains neon and argon gas?

• Gaseous at room temperature and highly reactive with metals.

• Solid at room temperature and mildly reactive with strong acids.

• Gaseous at room temperature and mostly unreactive.

• Solid at room temperature and mostly unreactive with strong acids.