The Chemistry of Life

The basic unit of matter

• matter
• energy
• atom
• isotope

Tags

NGSS.MS-PS1-1

The center of the atom which contains the protons and neutrons

• electrons
• core
• center
• nucleus

Tags

NGSS.HS-PS1-8

Negatively charged particle; located outside the atomic nucleus

• electrons
• neutrons
• protons
• atom

A substance consisting entirely of one type of atom

• compound
• atom
• molecule
• element

Atom of an element that has a number of neutrons different from that of other atoms of the same element

• neutron
• neutral
• element
• isotope

Tags

NGSS.HS-PS1-8

A substance formed by the chemical combination of two or more elements in definite proportions

• compound
• element
• atom
• molecule

A bond formed when one or more electrons are transferred from one atom to another

• bond
• ionic bond
• covalent bond
• ion

An atom that has a positive or negative charge

• ion
• proton
• covalent bond
• ionic bond

A bond formed by the sharing of electrons between atoms

• ionic bond
• sharing
• pair
• covalent bond

Tags

NGSS.HS-PS1-2

Smallest unit of most compounds

• element
• bond
• atom
• molecule

Tags

NGSS.MS-PS1-1