Exploring Electron Configuration and Periodic Trends

Which of the following is NOT an objective of this lesson?

• Define atomic radius

• Compare periodic trends

• Discuss transition metals

• State the number of valence electrons

Tags

NGSS.HS-PS1-2

What happens to the atomic radius as you move from left to right across a period?

• It decreases

• It remains the same

• It fluctuates

• It increases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element has a larger atomic radius: Lithium or Sodium?

• Lithium

• Sodium

• Cannot be determined

• Both have the same radius

Tags

NGSS.HS-PS1-1

What is ionization energy?

• Energy required to add an electron

• Energy released when an electron is removed

• Energy required to remove an electron

• Energy released when an electron is added

Tags

NGSS.HS-PS1-1

As you move up a group in the periodic table, what happens to the ionization energy?

• It decreases

• It remains the same

• It increases

• It fluctuates

Which element has a higher ionization energy: Oxygen or Neon?

• Cannot be determined

• Neon

• Oxygen

• Both have the same ionization energy

Tags

NGSS.HS-PS1-2

What is electron affinity?

• Energy required to add an electron

• Energy released when an electron is removed

• Energy required to remove an electron

• Energy released when an electron is added

Which group of elements has the highest electron affinity?

• Transition metals

• Halogens

• Alkali metals

• Noble gases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does Boron have?

• 4

• 1

• 2

• 3

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element has a higher electronegativity: Lithium or Sodium?

• Sodium

• Lithium

• Both have the same electronegativity

• Cannot be determined

Tags

NGSS.HS-PS1-2