Atomic Structure Vocabulary

Smallest particle of an element

• Atom

• Halogens

• Alkali Metals

• Physical Properties

• Chemical Properties

a particle found in the nucleus with a positive charge exactly equal and opposite to the electron.

• Proton

• Atom

• Halogens

• Alkali Metals

• Physical Properties

a particle found in the nucleus with a mass similar to the proton but with zero electric charge.

• Neutron

• Proton

• Atom

• Halogens

• Alkali Metals

a particle with an electrical charge (-e) found inside of atoms but outside the nucleus.

• Electron

• Neutron

• Proton

• Atom

• Halogens

Tags

NGSS.MS-PS2-5

How many protons, neutrons, and electrons does sulfur have? It's atomic number is 16 and it's atomic mass is 32.

• 16 protons, 16 neutrons, and 16 electrons

• 16 protons, 32 neutrons, and 16 electrons

• 16 protons, 16 neutrons, and 32 electrons

• 32 protons, 16 neutrons, and 16 electrons.

Tags

NGSS.MS-PS1-1

Silicon has a mass number of 28 and an atomic number of 14. How many protons does it have?

• 28

• 14

• 42

• 7

electrons in the highest unfilled energy level of an atom. These electrons participate in chemical bonds.

• Valence Electrons

• Electron

• Neutron

• Proton

• Atom

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

the number of protons in the nucleus. The atomic number determines what element the atom represents.

• Atomic Number

• Valence Electrons

• Electron

• Neutron

• Proton

the number of protons plus the number of neutrons in the nucleus.

• Mass Number

• Atomic Number

• Valence Electrons

• Electron

• Neutron

atoms of the same element that have different numbers of neutrons in the nucleus.

• Isotope

• Mass Number

• Atomic Number

• Valence Electrons

• Electron