Milady Chemistry

What is the smallest unit of matter?

• Quarks

• Molecules

• Atoms

• Cells

Explain the concept of atomic number.

• The atomic number is the number of neutrons in an atom's nucleus.

• The atomic number is the number of isotopes in an atom's nucleus.

• The atomic number is the number of protons in an atom's nucleus.

• The atomic number is the number of electrons in an atom's nucleus.

What are the three subatomic particles of an atom?

• Positrons

• Protons, Neutrons, Electrons

• Photons

• Quarks

Differentiate between an element and a compound molecule

• single molecule

• An element consists of only one type of atom, whereas a compound consists of two or more different types of atoms bonded together.

• elemental molecule

• An element is always a liquid, while a compound is always a gas.

• compound

  molecule

• An element is a mixture of different types of atoms, whereas a compound is made up of a single type of atom.

What is the term used for anything that occupies space

• matter

• element

• compound

What is the charge of a proton?

• Negative

• Positive

• Neutral

• Variable

Which substance a solute ​ ​ ​

• salt
• water
• vinegar

• oil

subatomic particles with no charge

subatomic particles with a negative charge

liquids that are mixed together easily are considered to be

• miscible

• immiscible