Periodic Trends Review

How did Mendeleev arrange the elements?

• alphabetical 
• density
• melting point
• atomic mass

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NGSS.HS-PS1-1

The horizontal row on the periodic table is called a

• group
• family
• period
• atomic number

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NGSS.HS-PS1-1

Before the discovery of the Noble Gases, Mendeleev found that there was a pattern of properties that repeated every ____ elements.

• 2

• 4

• 5

• 7

A vertical column is called...

• group
• tower
• period
• crew

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

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

Which of these element is the least metallic?

• Potassium (K)
• Carbon (C)
• Sulfur (S)
• Neon (Ne)

A rule that states that repeating chemical and physical properties of elements change periodically with the atomic number of the elements is the _________.

• periodic law
• alkaline-earth metals
• actinide
• group rule

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NGSS.HS-PS1-1

Diamonds are an allotrope of what pure element?

• Carbon

• Oxygen

• Silicon

• Silver

Most of the elements on the periodic table are classified as _____.

• Metals
• Nonmetals
• Metalloids
• Periods

Tags

NGSS.HS-PS1-1

This class of elements are sometimes called "semiconductors."

• Metals
• Nonmetals
• Metalloids
• Groups

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NGSS.HS-PS1-1