Periodic Table

Found in group two of the periodic table; highly reactive

• period

• Alkali Earth Metals (Group 2)

• metalloids (semimetals)

• alkali metals (group 1)

The electrons in the outermost shell (main energy level) of an atom; these are the electrons involved in forming bonds

• alkali metals (group 1)

• Halogens (Group 17)

• atomic number

• valence electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

good thermal conductors, shiny, electric conductors, higher density and melting points than group

• alkali metals (group 1)

• Transition Metals (Groups 3-12)

• Non-metals

• metalloids (semimetals)

Tags

NGSS.MS-PS3-3

metalloids (semimetals)

• Elements that occur in vertical columns on the periodic table.

• an element that has both metallic and nonmetallic properties

• not able to conduct heat or electricity, little to no metallic luster

• found in group one of the periodic table; highly reactive

What does 12.011 represent?

• atomic mass

• atomic number

• element name

• chemical symbol 

a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

• family

• period

• row

• isotope

Which elements are colored red?

• nonmetals

• metals

• metalloids

The Modern Periodic Table of Elements is arranged by

• atomic mass

• atomic number

• valence electrons

• number of isotopes

a row on the Periodic Table of Elements

• family

• period

• row

• isotope

Which color on the image of the periodic table corresponds with the metalloids.

• bright yellow

• gold

• teal

• light blue