Unit 1 pt 1 Vocab

the smallest particle of an element that maintains the properties of that element; a unit of matter—“building block of matter.”

the sum of the numbers of protons and neutrons in the nucleus; Protons + Neutrons

the number of protons in the nucleus; Identifies the element

a property of a subatomic particle; positive (protons), neutral (neutrons), or negative (electrons)

Tags

NGSS.MS-PS2-3

a negatively charged subatomic particle that is found outside of the nucleus in the electron cloud

the negatively charged space containing electrons that surrounds the atomic nucleus

the amount of matter in something

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

anything that has mass and takes up space

a neutral (no charge) subatomic particle within the nucleus

small, dense, positively charged center of an atom containing protons and neutrons; makes up the mass of an atom