Atoms Vocabulary flashcards

Front

Building block of all matter

Back

Atom

Front

Number of protons in an atom

Back

Atomic number

Front

Model of atom: dense nucleus + electron cloud

Back

Modern atomic model

Front

Unit of mass for atomic weight

Back

Atomic mass unit

Front

Row on the periodic table

Back

Period

Front

Chart of elements in rows and columns

Back

Periodic table

Front

Metallic elements in groups 3-12

Back

Transition metals

Front

Specific energies of electrons in orbitals

Back

Energy level

Front

Element with no metallic properties

Back

Nonmetal

Front

Proton

Back

inside the nucleus, positive charge