BIO Module 6

The building blocks of matter.

• Cells

• Isotopes

• Atoms

• Elements

The center of an atom, which is made up of protons and neutrons.

• Nucleus

• Element

• Atom Center

• Middle

Positively charged particles in the nucleus.

• Protons

• Neurons

• Neutrons

• Electrons

Particles in the nucleus that have no charge.

• Electrons

• Neutrons

• Neurons

• Protons

Negatively charged particles that are located outside the nucleus.

• Protons

• Neurons

• Electrons

• Neutrons

A pure substance that cannot be broken down into other substances by physical or chemical means.

• Element

• Metalloid

• Mass

• Compound

Atoms of the same element that have different numbers of neutrons.

• Compounds

• Elements

• Molecules

• Isotopes

A pure substance formed when two or more different elements combine.

• Element

• Compound

• Isotope

• Formula

The chemical bond that forms when electrons are shared.

• Covalent Bond

• Element

• Ionic Bond

• Isotope

A compound in which the atoms are held together by a covalent bond.

• Molecule

• Ionic bond

• Isotope

• Element