Card 1 of 24
Explain why the atomic radius increases from magnesium to barium.
A
- Each element has an extra electron shell.
- Increased shielding cancels the increased nuclear charge.
B
- Each element has an extra electron shell.
- Increased nuclear charge outweighs the increased shielding.
C
- Each element has one fewer electron shell.
- Decreased shielding weakens the nuclear attraction.
D
- Each element has the same number of electron shells.
- Increased nuclear charge pulls the outer electrons closer.
Card 1 of 24