Electron Arrangement

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

What is the maximum number of electrons in the second energy level (second shell) ?

• 18

• 8

• 32

• 2

Identify the element with the electron arrangement 2,8,2

• Neon

• Sodium

• Magnesium

• Aluminium

Identify the element with the electron arrangement 2,8,8

• Neon

• Argon

• Helium

• Chlorine

Element X has 7 outer electrons. Which group is it in?

• 1

• 2

• 7

• 8

How many total electrons does element 15 have?

• 5
• 2
• 8
• 15

Tags

NGSS.HS-PS1-1

Protons are:

• Positive
• Negative
• Neutral
• Exist outside the nucleus

Neutrons are:

• Positive
• Neutral
• Negative
• Exist outside the nucleus

Tags

NGSS.HS-PS1-8

Electrons are: 

• Positive
• Negative
• Neutral

Tags

NGSS.MS-PS2-3

Protons and neutrons can be found:

• Inside the nucleus
• Orbiting the nucleus
• In the electron shell

Tags

NGSS.HS-PS1-8