Physical Science Matter Unit review

The smallest unit of matter.

• Nucleus

• Atom

• Element

• Compound

Positively charged suabtomic particle

• electrons

• neutrons

• protons

• nucleus

Subatomic particle with a neutral or no charge.

• protons

• neutrons

• electrons

• nucleus

The number on the periodic table for each element that shows how many protons and electrons it contains.

• valence electrons

• mass number

• atomic number

The number of outermost electrons in the atomic structure.

• valence electrons

• protons

• neutrons

• electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An organized diagram of all the elements.

• Lewis dot diagram

• Isotopic notation

• Periodic table

• Bohr model

Tags

NGSS.HS-PS1-1

A negatively charged subatomic particle.

• protons

• neutrons

• electrons

Two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons and therefore different mass numbers.

• valence electron

• mass number

• isotope

• ion

The total number of protons and neutrons of each element.

• atomic number

• mass number

• valence electrons

• period number

Tags

NGSS.HS-PS1-8

The center of an atom that contains protons and neutrons, also where the majority oof the mass of an atom is located.

• neutrons

• protons

• nucleus

• orbitals/shells

Tags

NGSS.HS-PS1-8