Vocab Elements & Periodic Table

Atom with the same number of protons but different number of neutrons

Average mass of all the isotopes of an element

Columns on the periodic table

Elements having properties of both metals and nonmetals

Gases or brittle solids that are poor conductors

Group 1 metals of the periodic table

Group 17 elements of the periodic table (salt formers)

Group 18 elements of the periodic table

Tags

NGSS.HS-PS1-1

Group 2 metals of the periodic table

Groups 3 through 12 of the periodic table