Chemistry S1 Final Review

Which of the following is described as the basic unit of matter?

• Element
• Atom
• Molecule
• Compound

In the atom diagram shown, E is pointing to

• An electron
• a proton
• a neutron
• the nucleus

In the atom diagram shown, A is pointing to the darker particles, these are known as

• electrons

• protons

• neutrons

• the nucleus

Which of the following is described as the basic unit of matter?

• Element
• Atom
• Molecule
• Compound

In the atom diagram shown, E is pointing to

• An electron
• a proton
• a neutron
• the nucleus

In the atom diagram shown, A is pointing to the darker particles, these are known as

• electrons

• protons

• neutrons

• the nucleus

B and C are found in the ______ of an atom.

• electron cloud
• Space
• Nucleus
• Outside

What charge does an electron have?

• Negative
• Positive
• Neutral
• Contrated

Which of the following is found in the nucleus of an atom?

• electrons
• neutrons
• The center of an atom, composed of protons and neutrons
• molecules

In this chemical equation, the elements in red are the_______.

• Products

• Reactants

• Subscripts

• Coefficients