Electron Shielding and Effective Nuclear Charge

How many shielding electrons does carbon have? (hint: write its configuration first)

• 1
• 2
• 3
• 4

How many valence electrons does carbon have?

• 3
• 4
• 5
• 6

Tags

NGSS.HS-PS1-1

As you go down a group, the amount of shielding....

• increases
• decreases
• stays the same

As you go across a period, the amount of shielding...

• Increases
• decreases
• stays the same

Tags

NGSS.HS-PS1-1

What is the Nuclear charge of yttrium? 

• 40
• 41
• 38
• 39

What is EFFECTIVE nuclear charge

• The charge that actually matters
• The sharge of an element
• The charge felt by the valence electrons
• The charge felt by the inner orbital electrons

As you move down a group, the effective nuclear charge....

• increase
• decreases
• stays the same

As you move across a period, the effective nuclear charge...

• increases
• decreases
• stays the same

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following elements has the most "shielding" electrons?

• Nitrogen
• Phosphorus
• Arsenic
• Bismuth

Which of the following elements has the most "shielding" electrons?

• Neon
• flourine
• oxygen
• They have the same