Periodic Table

This group of elements sit along a stair step line on the periodic table and have properties of both metals and nonmetals. _________________________

• luster

• metals

• nonmetals

• metalloids

period

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

• A horizontal row of elements in the periodic table

• Found in group two of the periodic table; highly reactive

• A subatomic particle that has a negative charge

atomic number

• gas at room temperature, low boiling point

• a subatomic particle that has a negative charge

• number or protons and neutrons

• the number of protons in the nucleus of an atom

found in group one of the periodic table; highly reactive

• Non-metals

• Transition Metals (Groups 3-12)

• alkali metals (group 1)

• metalloids (semimetals)

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

• Non-metals

• noble gases

• atomic mass

• Neutron

Found in group two of the periodic table; highly reactive

• period

• Alkali Earth Metals (Group 2)

• metalloids (semimetals)

• alkali metals (group 1)

Elements that occur in vertical columns on the periodic table.

• Neutron

• metalloids (semimetals)

• groups

• Proton

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-PS1-4

NGSS.MS-PS3-3

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

gas at room temperature, low boiling point.

• atomic mass

• atomic number

• Non-metals

• noble gases

Tags

NGSS.MS-PS1-4