Periodic Trends

Which element in Period 2 has the greatest atomic radius?

• Be

• C

• Na

• Li

Tags

NGSS.HS-PS1-1

Which of the group 13 elements is the largest?

• B

• Ti

• Fr

• Ga

Tags

NGSS.HS-PS1-1

Of the halogens, which has the smallest radius?

• F

• Br

• He

• At

Tags

NGSS.HS-PS1-1

Which of the metalloids has the smallest atomic radius?

• Si

• B

• Sb

• Al

Tags

NGSS.HS-PS1-1

Of the halogens, which has the smallest electronegativity?

• F

• Cl

• At

• Ne

Tags

NGSS.HS-PS1-1

Which of the alkaline-earth metals has the smallest electronegativity

• Be

• Sc

• Ra

• Sr

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which alkali metal is the least reactive?

• Li

• Na

• H

• Fr

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the period 3 elements has the largest electronegativity?

• Ar

• Cl

• Na

• F

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element in the Lanthanide Series has the largest atomic radius?

• Th

• Ce

• Gd

• Lu

Tags

NGSS.HS-PS1-1

As you move down a group, atomic radius increases because - 

• you add more and more neutrons
• you add more and more protons
• you add more and more shells (energy levels)
• you add more atomic mass