Biochemistry Review

Which 3 particles make up an atom?

• Proton

• Nucleus

• Electron

• Neutron

Which particle is found in the space surrounding the nucleus of an atom?

If an atom has 15 protons and 16 neutrons, what is the atomic number?

How many neutrons does Thorium have?

How many electrons does Neon have? (Just type the number!)

Which substance is formed by the combination of two or more elements in definite proportions?

• Nucleus

• Enzyme

• Compound

• Ion

How many elements are present in the pictured compound?

How many molecules are in the pictured compound?

How many atoms are in the pictured compound?

In which type of bond are electrons shared?

• covalent bonds

• Ionic bonds