Periodic Trends

Multiple Choice

Atomic radius DECREASES when

• when you go across a row from right to left

• when you go down a group

• when you go across a row from left to right

• when you go across a group from left to right

Reorder

Put in order from biggest to smallest (decreasing size)

• Calcium

• Iron

• Zinc

• Bromine

• Krypton

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

Ionization energy ________________ as you go DOWN a group

• increases

• decreases

Multiple Choice

Which atom has larger ionization energy

• aluminum

• sulfur

Multiple Choice

Which atom has smaller ionization energy

• strontium

• iodine

Multiple Choice

This element has the lowest electron affinity

• magnesium

• sodium

• silicon

• sulfur

Multiple Choice

What element is the most electronegative

• chlorine

• bromine

• iodine

• astatine

Multiple Choice

What element is the LEAST electronegative

• cadmium (Cd)

• antimony (Sb)

• Zirconium (Zr)

• Strontium (Sr)

Multiple Choice

What metal is most reactive

• lithium

• sodium

• potassium

• rubidium

Multiple Choice

What non-metal is the most reactive

• iodine

• sulfur

• oxygen

• fluorine

Multiple Choice

Which metal ion (cation) is the smallest

• oxide ion (oxygen ion)

• nitride ion (nitrogen ion)

• aluminum ion

• magnesium ion

Reorder

Put these ions and atoms in order from biggest to smallest (DECREASING SIZE)

• nitride ion (nitrogen ion)

• oxide ion (oxygen ion)

• fluoride ion (fluorine ion)

• neon atom

1

2

3

4

• 1
• 2
• 3
• 4