Module 6: Chemistry in Biology

compound whose atoms are held together by covalent bonds

• acid
• ion
• molecule
• element

atom that is negatively or positively charged because it has lost or gained one or more electrons

• molecule
• element
• ion
• compound

pure substance which is formed when two or more different elements combine

• element
• compound
• mixture
• solution

electrical attraction between two oppositely charged atoms or groups of atoms

• covalent bond
• hydrogen bond
• metallic bond
• ionic bond

Tags

NGSS.HS-PS1-3

a type of chemical bond formed when atoms share electrons

• hydrogen bond
• covalent bond
• ionic bond
• metallic bond

negatively charged particle that occupies space around an atom's nucleus

• electron
• photon
• neutron
• proton

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

pure substance composed of only one type of atom

• mixture
• ion
• compound
• element

center of an atom which contains neutrons and protons

• electron cloud
• outer shell
• valence electrons
• nucleus

Tags

NGSS.HS-PS1-8

positively charged particle in an atom's nucleus

• electron
• neutron
• photon
• proton

Tags

NGSS.HS-PS1-8

two or more atoms of the same element having different numbers of neutrons

• Compounds
• Isotopes
• Molecules
• Ions

Tags

NGSS.HS-PS1-8