True or false: atoms and isotopes

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Most of an atom's volume is empty space.

2. Statement is true

   No

   Statement

   Neutrons add charge as well as mass to an atom.

3. Statement is true

   Yes

   Statement

   Carbon-14 is used to date old bones and wood.

4. Statement is true

   No

   Statement

   Group 17 elements tend to form positive ions.

5. Statement is true

   Yes

   Statement

   The 1s orbital is always filled before any other.

Instructions

Tap True or False for each statement.

Explanation