The Structure of the Atom Answers

Use the drop-down menus to describe the charges of the subatomic particles.Protons have a charge.

have a 0 charge.

Electrons have a charge.

In an electrically neutral atom, the number of

Which region is indicated by label B?

Using the drop-down menus, complete the table to summarize the properties of the different subatomic particles. A

B

C

A =

B =

C =

Atoms of which element contain 25 protons?

Which element has an atomic number of 16?

How many electrons are in an atom of elemental sodium?

Use the periodic table to determine which of the following could be an isotope of bromine (Br). Check all that apply.

Which region is indicated by label A?

Use the periodic table to determine which of the following could be an isotope of indium (In). Check all that apply.