Atoms and Element

a pure substance that is made up of one kind of atom

• element

• atom

• Proton

• Neutron

the smallest unit of a chemical element that still has the chemical properties of that element

• atom

• element

• Proton

• Neutron

a positively charged subatomic particle found in the nucleus of every atom

• atom

• proton

• neutron

• electron

a subatomic particle that has about the same mass as a proton but does not have an electric charge

• proton

• neutron

• electron

• atomic number

Tags

NGSS.HS-PS1-8

a subatomic particle with a negative electric charge

• proton

• Neutron

• Electron

• atomic number

the number of protons in an atom’s nucleus

• proton

• neutron

• electron

• atomic number

a property of matter; there are two kinds of electric charge—positive and negative

• atomic number

• atomic mass

• atomic weight

• electric charge

an abbreviation for an element

• electric charge

• atomic number

• atomic weight

• chemical symbol

a table of elements in order of atomic number, and arranged so that the elements in a column have similar properties and atomic structure

• Electric charge

• Periodic table of elements

• atomic number

• valence electron

an electron in the outermost energy level of an atom

• atomic number

• compound

• valence electron

• chemical symbol