Unit 4 Vocabulary

an atom or group of atoms that has become charged by gaining or losing one or more electrons

• ionic bonding

• covalent bonding

• ion

• metallic bonding

a strong chemical bond that is formed by the attraction between two ions of opposite charges

• ionic bonding

• covalent bonding

• ion

• metallic bonding

Tags

NGSS.HS-PS1-3

a chemical bond between two atoms, in which each atom shares an electron

• ionic bonding

• covalent bonding

• ion

• metallic bonding

a chemical bond where positive metal ions form a lattice structure with freely moving electrons between them

• ionic bonding

• covalent bonding

• ion

• metallic bonding

Tags

NGSS.HS-PS1-1

an interaction between the atoms of two substances where the atoms rearrange to form two new molecules

• endothermic reaction

• exothermic reaction

• ion

• chemical reaction

Tags

NGSS.HS-PS1-7

a chemical reaction that takes in heat

• endothermic reaction

• exothermic reaction

• ion

• chemical reaction

Tags

NGSS.HS-PS1-4

a chemical reaction that gives off heat

• endothermic reaction

• exothermic reaction

• ion

• chemical reaction

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

a new substance produced in a chemical reaction

• reactant

• product

• moles

• reactivity

Tags

NGSS.HS-PS1-7

the SI unit for the amount of a substance

• reactant

• product

• moles

• reactivity

the substance present at the beginning of a chemical reaction

• reactant

• product

• moles

• reactivity

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5