Atomic Structure and theory review

Measure mainly of the nuclear particles: protons + neutrons

• Subatomic Particles
• Atomic Number
• Atomic Mass
• Gluons

Value representing the number of protons in an element

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

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

What is one way Neutrons are different from electrons?

• they both are negative

• neutrons have no charge, while electrons have a negative charge

• Both are in the nucleus( center of atom)

• Electrons are inside nucleus and neutrons are outside the nucleus.

Tags

NGSS.MS-PS1-1

What is the atomic number?

• 35

• 18

• 17

• 52

Tags

NGSS.MS-PS1-1

How many protons and electrons does this element have?

• 35

• 18

• 17

• 52

Tags

NGSS.MS-PS1-1

How many neutrons does Chlorine have?

• 18

• 17

• 35

• 52

Tags

NGSS.HS-PS1-8

What is the atomic mass of Neon?

• 10

• 20

• 30

Tags

NGSS.HS-PS1-1

How many neutrons does calcium have?

• 20

• 40

• 60

• 0

What number indicates an electron?

• 1
• 2
• 3
• 4