Counting Particles

Counting Particles

Get your periodic table ready!

Multiple Choice

Protons have a _____ charge.

• negative

• neutral (zero)

• positive

Fill in the Blank

Find the number of protons in chlorine.

Fill in the Blank

Find the number of protons in iron.

Fill in the Blank

Find the number of protons in hydrogen.

Multiple Choice

Neutrons have a _____ charge.

• negative

• neutral (zero)

• positive

Fill in the Blank

Find the number of neutrons in boron.

Fill in the Blank

Find the number of neutrons in nitrogen.

Fill in the Blank

Find the number of neutrons in bromine.

Multiple Choice

Electrons have a _____ charge.

• negative

• neutral (zero)

• positive

Fill in the Blank

Find the number of electrons in a neutral magnesium atom.

Fill in the Blank

Find the number of electrons in a neutral titanium atom.

Fill in the Blank

Find the number of electrons in a neutral argon atom.

Fill in the Blank

An atom has 30 protons, 37 neutrons, and 28 electrons. What element is it?

Fill in the Blank

Which element has 22 neutrons, 15 electrons, and 19 protons?