Atoms and Molecules

What is the basic unit of matter and is the smallest part of an element?

• Atom

• Element

• Molecule

• Compound

Tags

NGSS.MS-PS1-1

What is the small region in the center of an atom consisting of protons and neutrons

• Atom

• Nucleus

• Orbit

• Neutron

A positively charged subatomic particle located in the nucleus of the atom

• Neutron

• Electron

• Proton

• Atom

A subatomic particle located in the nucleus of an atom that has a neutral charge.

• Neutron

• Proton

• Electron

• Atom

A negatively charged subatomic particle that is found in the orbitals surrounding the nucleus of an atom

• Neutron

• Proton

• Electron

• Atom

This is equal to the number of protons in the nucleus and the number of electrons in an uncharged atom. It is also unique to each element.

• Atom

• Element

• Atomic Number

• Atomic Mass

Tags

NGSS.MS-PS1-1

A substance made up of only one kind of atom

• Atom

• Element

• Molecule

• Compound

A substance made up of atoms of two or more elements that are chemically combined

• Atom

• Element

• Molecule

• Compound

Tags

NGSS.MS-PS1-1

A substance made up of two or more different types of molecules joined by chemical bonds

• Atom

• Element

• Molecule

• Compound

Atoms that have the same number of protons but a different number of neutrons.

• Atomic Mass

• Atomic Number

• Isotope

• Neutron