Atomic structure — true or false?

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Atoms have a positively charged nucleus surrounded by electrons.

2. Statement is true

   No

   Statement

   Electrons have more mass than protons.

3. Statement is true

   Yes

   Statement

   Atomic number = number of protons.

4. Statement is true

   No

   Statement

   Isotopes differ in number of protons.