Heritage Middle School Now
Frenship School District
Electron Cloud - The area of an atom that electrons orbit the nucleus.
Chemical Property - a property of matter that determines how it reacts during chemical reactions determined by the number of valence electrons.
Proton- The particle of an atom that identifies the properties of the atom has a positive charge.
Electron - the particle of an atom that determines the reactivity of the atom has a negative charge.
Nuetron - the particle of an atom that has no charge.
Orbit - the path that elctrons take around the nucleus.
Symbol - the abbreviated representation for an element
Atomic number - the number of protons in the nucleus of an atom used to determine an elements position and periodic table.
Periodic table - table that organizes elements based on physical and chemical properties.
Valence electrons - the electrons in the outer most energy level of an atom. They determine the reactivity of them.
Thats the vocabulary 8th grade is learning in science.