Valence Electrons Practice

All atoms are most stable with (or would "prefer") how many electrons in their valence shell?

• 1

• 2

• 8

• 18

Tags

NGSS.HS-PS1-1

Valence electrons are: 

• Electrons farthest away from the nucleus
• Electrons closest to the nucleus
• Electrons that just come and go - they don't stay with the atom
• Electrons in the second shell

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How do electrons of an element determine that element's reactivity?

• If the valence shell has missing electrons it is very reactive to attract or lose more electrons.

• If the valence shell has a full ring of electrons it is very reactive because it needs more.

• If the valence shell has a full shell of electrons it is very reactive because it is already full.

• If the valence shell has missing electrons it is not reactive because it is missing electrons.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Describe this element.

• Highly reactive metal
• Highly reactive nonmetal
• Stable
• Less stable non metal

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• 2
• 8
• 3
• 13

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

• 2
• 3
• 5

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does carbon have?

• 4

• 5

• 6

• 7

Tags

NGSS.HS-PS1-1

• 12
• 7
• 8
• 14

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

• 7
• 8
• 9
• 10

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2