Valence Electrons/Energy Levels (Shells)

Elements in the same column of the periodic table always have the same # of _______ as one another.

• Protons
• Neutrons
• Electrons
• Valence Electrons

Tags

NGSS.HS-PS1-1

USE THE PERIODIC TABLE

Find the element that has 5 Valence Electrons and 4 energy levels.

• Arsenic - As

• Selenium - Se

• Calcium - Ca

• Vanadium - V

Tags

NGSS.HS-PS1-1

USE THE PERIODIC TABLE

How many valence electrons does Neon have?

• 18

• 8

• 10

• 2

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

What are the elements (Be, Mg, Ca,...) in group 2 called?

• Alkali metals

• Alkaline earth metals

• Halogens

• Nobel Gases

How many valence electrons does an atom of Chlorine have?

• 2

• 4

• 6

• 7

Tags

NGSS.HS-PS1-1

How many valence electrons does an atom of Aluminum have?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-1

What is the most common ionic charge for potassium?

• +1

• +2

• -1

• -2

What is the most common ionic charge for fluorine?

• -3

• -2

• -1

• +1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

NGSS.HS-PS1-2