The tendency of an atom to prefer to have all eight valence electrons in its outer shell.

• molecular behavior

• ionic bond

• molecule

• octet rule

Low melting points and boiling points, are poor conductors of heat, and are bendable or pliable, and involve nonmetal atoms

• Molecular behaviors

• Ionic behaviors

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

The sharing of electrons between nonmetal atoms with similar electronegativity. 

• Covalent Bond

• Ionic Bond

Matter with a composition that is always the same–It can be a single element or a compound.

• Molecule

• Mixture

• Pure Substance

• Ratio

Transfer of electrons between oppositely charged atoms–usually between a metal and a nonmetal–big differences in electronegativity.

• Ionic Bond

• Covalent Bond

Tags

NGSS.HS-PS1-3

Two or more atoms (can be the same element or different elements) that are held together by covalent bonds and act as a unit.

• compound

• molecule

• mixture

• ionic bond

Answer explanation

Molecules can be made of one element or more than one element, unlike compounds which HAVE to include two different types of elements.

Tags

NGSS.MS-PS1-1

Two or more atoms of the same element that are held together by a covalent bond and act as a unit.

• elemental molecule

• compound

• mixture

• monatomic

Tags

NGSS.MS-PS1-1

Stable, single atom elements that do not combine with other elements due to having a full outer valence shell (noble gases).  

• Diatomic Element

• molecule

• compound

• monatomic

Two or more atoms of two different types of elements that are held together by covalent bonds and act as a unit.

• molecule

• compound

• diatomic

• monatomic

Tags

NGSS.MS-PS1-1

Two atoms of the same element that pair up as molecules to obey the octet rule (never appear alone).  

• monatomic

  element

• compound

• diatomic

  element

• ionic bond

Tags

NGSS.MS-PS1-1