the basic structural unit of matter

• atom

• matter

• element

• nucleus

Tags

NGSS.MS-PS1-1

a collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means

• element

• subatomic particle

• electron

• matter

Tags

NGSS.HS-PS1-1

the positively charged subatomic particle contained in the nucleus of an atom

• proton

• neutron

• electron

• matter

Tags

NGSS.HS-PS1-8

a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge

• proton

• neutron

• electron

• matter

Tags

NGSS.MS-PS1-1

a negatively charged subatomic particle that orbits the nucleus of an atom

• proton

• neutron

• electron

• matter

Tags

NGSS.HS-PS1-1

an arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column and properties repeat from row to row

• Periodic Table of Elements

• Atomic Theory

• Isotopes

• Subatomic Particles

one or two letters that represent the name of an element

• element name

• element symbol

• atomic number

• atomic mass

a unique number for each element that equals the number of protons in an atom of that element

• element name

• element symbol

• atomic number

• atomic mass

the mass of an atom, calculated by adding the number of protons and neutrons in the nucleus of the atom

• element name

• element symbol

• atomic number

• atomic mass

a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

• family

• period

• row

• isotope

Tags

NGSS.HS-PS1-1