Valence Electrons and Ions

Q1. How many apples are there?

• 1)

  2

• A)

  8

• 1)

  3

• A)

  13

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

• 1

• 2

• 8

• 18

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

• 2
• 3
• 5

Tags

NGSS.MS-PS1-1

Select the elements that has 8 valence electrons.

• Ne

• Br

• Kr

• Xe

• 14

• 4

• 3

• 28

Tags

NGSS.MS-PS1-1

• 7
• 8
• 9
• 10

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

NGSS.HS-PS1-4

• 12
• 7
• 8
• 14

Tags

NGSS.MS-PS1-1

This is a Bohr Diagram of Aluminum. How many valence electrons does Aluminum have?

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

If a neutral atom gains more electrons, it will become a(n)

• Positive ion

• Negative ion

• Isotope

• New element