Atomic composition and extended structures

A group of two or more atoms that are held together by chemical bonds; it has a unique composition and structure

• Chemical structure

• Model

• Molecule

• Polymer

Tags

NGSS.MS-PS1-1

A representation of an object that makes important aspects easier to see.

• Molecule

• Crystal

• Chemical bond

• Model

The specific way in which the bonds and atoms are arranged within the molecules of a substance

• Atomic composition

• Chemical bond

• Chemical structure

• Extended structure

Tags

NGSS.HS-PS1-3

A solid structure whose atoms or molecules are arranged in a repeating, three-dimensional pattern.

• Crystal

• Model

• Molecule

• Polymer

Tags

NGSS.MS-PS1-1

An individual particle of an element

• Atom

• Molecule

• Cell

• Proton

Two or more atoms held together by chemical bonds

• Chemical bond

• Pure substance

• Molecule

• Crystal

Tags

NGSS.MS-PS1-1

Which one of these is a compound?

• Nitrogen (N)

• Carbon (C)

• Oxygen (O)

• Sodium Chloride (NaCl)

Which one of these is a compound?

• Gold (Au)

• Silver(Ag)

• Lead (Pb)

• Water (H₂O)

Tags

NGSS.MS-PS1-1

Which one of these is a compound?

• Oxygen gas (O₂)

• Hydrogen chloride (HCl)

• Lead (Pb)

• Chlorine (Cl)

Tags

NGSS.MS-PS1-1

Why are salt (NaCl) grains cubical?

• The atoms arranged in a cubical pattern.

• All compounds are cube shaped.

• Sodium (Na) and Chlorine (Cl) are both cube shaped.

Tags

NGSS.MS-PS1-1