chemisytry in biology

the building block of matter

What atoms are made of?

The center of an atom is call?

• Orbit

• Electrón cloud

• Nucleous

What is the charge of protons

What is the charge of neutrons

What is the charge of electrons

Electrons are found in…

What is formed when substances combine in any proportions without a chemical reaction?

• An element

• An atom

• A chemical compund

• A mixture

Ionic bonds form when

• atoms share electrons

• atoms lose protons

• atoms lose or gain electrons

• atoms gain protons

Covalent bonds form when

• atoms share electrons

• atoms transfer electrons

• atoms share protons

• atoms transfer protons