Question

part a
which property increases as you move from left to right across a row in the periodic table?
○ atomic size
○ ionization energy
○ metallic character

Explanation:

• Atomic size decreases left-to-right across a period because increasing nuclear charge pulls electrons closer to the nucleus.
• Ionization energy increases left-to-right across a period as the higher nuclear charge makes it harder to remove an outer electron.
• Metallic character decreases left-to-right across a period as elements become less likely to lose electrons and more likely to gain them.

Answer:

ionization energy