Periodic Table

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

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

found in group one of the periodic table; highly reactive

• Non-metals

• Transition Metals (Groups 3-12)

• alkali metals (group 1)

• metalloids (semimetals)

neutron

• A subatomic particle that has a positive charge and that is found in the nucleus of an atom

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

• A subatomic particle that has a negative charge

• A small particle in the nucleus of the atom, with no electrical charge

Tags

NGSS.MS-PS1-1

A subatomic particle that has a positive charge and that is found in the nucleus of an atom

• Proton

• elecrtron

• groups

• neutrons

Tags

NGSS.MS-PS1-1

A subatomic particle that has a negative charge

• nobles gases

• protons

• electrons

• neutrons

Tags

NGSS.MS-PS2-3

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)

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

Halogens (Group 17)

• gas at room temperature, low boiling point.

• most reactive nonmetals

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

• Number of protons and neutrons