Ch. 7 Vocabulary

smallest piece of an element that still represents the element

Tags

NGSS.MS-PS1-1

atomic particle with one negative charge (1-)

area around an atomic nucleus where an electron is most likely to be found

neutral particle in the nucleus of an atom

small area in the center of an atom in which most of an atom's mass and positive charge is concentrated

atomic particle with one positive charge (1+)

the number of protons in an atom of an element

average mass of an element's isotopes, weighted according to the abundance of each isotope

atom that is no longer neutral because it has gained or lost electrons

any of two or more atoms of the same element that have different numbers of neutrons

Tags

NGSS.HS-PS1-8