Electron Levels and Valence Electrons

If an atom has 12 protons, how many valence electrons will that atom have? 

• 2
• 10
• 8
• 6

Which atom is it who has 3 energy levels and 4 valence electrons? 

• Carbon
• Lithium
• Silicon
• Aluminum

Identify this atom: 

• Lithium
• Chlorine
• Phosphorus 
• Fluorine

Tags

NGSS.MS-PS1-1

What is the number of valence electrons for Carbon?

• 12
• 6
• 5
• 4

Tags

NGSS.HS-PS1-1

Which element is this?

• Nickel

• Neon

• Sodium

• Nitrogen

Tags

NGSS.MS-PS1-1

Name this element.

• Argon

• Chlorine

• Aluminum

• Boron

Tags

NGSS.MS-PS1-1

Name this element.

• Neon

• Magnesium

• Sodium

• Manganese

Tags

NGSS.MS-PS1-1

Valence electrons are the...

• Innermost electrons
• Middle electrons
• Outermost electrons
• Any electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many electrons does the first level hold?

• 1

• 2

• 4

• 8

How many electrons can be in the 2nd energy level hold?

• 1

• 2

• 4

• 8