The total of the particles found in the nucleus; equal to protons + neutrons

• Isotope

• Atomic Number

• Mass Number

• Period

Value representing the number of protons in an element

• Atomic Mass
• Mass Number
• Valence Electrons
• Atomic Number

Atoms of the same element with different numbers of neutrons

• Ions

• Isotopes

• Electron Clouds

• Energy Levels

Where electrons are likely to be found as they travel around the nucleus

• Nucleus
• Electron Cloud
• Within a Proton
• Within a Neutron

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

• Electron Shells
• Orbitals
• Electron Cloud
• Nucleus

Tags

NGSS.HS-PS1-8

How many protons does Chlorine have?

• 35

• 18

• 17

• 52

Tags

NGSS.MS-PS1-1

How many neutrons does Chlorine have?

• 18

• 17

• 35

• 52

Tags

NGSS.MS-PS1-1

How many neutrons does Neon have?

• 10

• 11

• 20

• 21

• 31

Tags

NGSS.MS-PS1-1

What is the atomic number of Calcium?

• 20

• 40

• 60

• 0

Tags

NGSS.MS-PS1-1

What is the mass number of Arsenic?

• 33

• 107

• 75

Tags

NGSS.MS-PS1-1