Protons have a __________ charge.

Electrons have a _________ charge.

Neutrons have a ________ charge.

Atoms are the basic building blocks of all _______________.

The flow of electrons from one atom to another is called __________________________________.

The correct symbol for Oxygen is

The correct symbol for Potassium is

The correct symbol for Nitrogen is

H is the symbol for

B is the correct symbol for

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