Valence Electrons and Periodic table groups Retake Practice

How many valence electrons are in an atom of Se?

• 2
• 8
• 6
• 5

Tags

NGSS.HS-PS1-1

How many valence electrons are in an atom of Ba?

• 2
• 8
• 4
• 1

Tags

NGSS.HS-PS1-1

How many valence electrons are in an atom of Ar?

• 2
• 8
• 4
• 1

Tags

NGSS.HS-PS1-1

How many valence electrons are found in atoms of group 1?

• 7
• 6
• 4
• 1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons are found in atoms of group 15?

• 4
• 5
• 2
• 3

Tags

NGSS.HS-PS1-1

How many valence electrons are found in atoms of group 14?

• 4
• 3
• 14
• 16

Tags

NGSS.HS-PS1-1

This could be the dot diagram of

• Mg

• Cl

• C

• O

Tags

NGSS.HS-PS1-1

Which of these is the correct electron dot structure for sulfur?

• 
• 
• 
• 

What are valence electrons?

• The total number of electrons in an atom

• The number of electrons in the outermost shell

• The number of electrons in the second shell

• The number of protons in the outermost shell

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of these is the correct electron dot diagram for nitrogen (N)?

• 
• 
• 
•