Periodic trends — true or false?

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Atomic radius decreases across a period.

2. Statement is true

   No

   Statement

   Atomic radius decreases down a group.

3. Statement is true

   Yes

   Statement

   Ionization energy increases across a period.

4. Statement is true

   No

   Statement

   Electronegativity increases down a group.

5. Statement is true

   No

   Statement

   Metallic character increases across a period.