Valence Electrons and electronegativity-some reading

You need a copy of the periodic table to do this lesson.

Valence Electron Pattern:

Groups are VERTICAL...Elements in the same group have the similar properties and "behave" similarly.

PERIODS are HORIZONTAL...Elements in the same period are on the same row. They DO NOT have similar properties. Each new periods creates a new orbital or shell.

​Do you see the pattern? The number of Orbitals indicates the row of that element.

Multiple Choice

Which periods would Calcium be located?

• Three

• Four

• Two

• One

Multiple Choice

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

Multiple Choice

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

• Protons
• Neutrons
• Electrons
• Valence Electrons

Hotspot

Touch the hot spot of a noble

gas on the periodic table.

Multiple Choice

How many valence electrons does Phosphorus have?

• 31

• 5

• 15

• 4

Multiple Choice

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

Click on the periodic table to see where group 14 is located.

• 4
• 3
• 14
• 16

Multiple Choice

Which group has the greatest number of valence electrons?

• 1
• 14
• 18
• 16

Multiple Choice

How many Valence Electrons does group 16 have?

• 16

• 10

• 8

• 6

Multiple Choice

Which elements have the most similar chemical properties?

Use Your Periodic Table

I have listed the atomic number of each element to make them easier to find.

• boron-#5 and carbon-#6

• oxygen-#8 and sulfur-#16

• aluminum-#13 and bromine-#35

• argon-#18 and silicon-#14

Multiple Choice

How many valence electrons

does this atom have?

• five

• six

• seven

• eight

Multiple Choice

How many valence electrons

does this atom have?

• one

• two

• three

Multiple Choice

How many valence electrons

does this atom have?

• three

• thirteen

• ten

• two

Multiple Choice

Which period would this atom be placed on the periodic table?

• 1st

  Period

• 2nd

  Period

• 3rd

  Period

• 4th

  Period

Multiple Choice

What period would this atom be placed on the Periodic Table?

• first period

• second period

• third period

• fourth period

Multiple Choice

What period would this atom be placed?

Remember periods are ROWS that go across

• one

• two

• three

• four

Multiple Choice

Notice that Sulfur (#16) is marked red on the periodic table

What elements listed below would have similar properties to sulfur?

• Phosphorus (P) and Chlorine (CL)

• Oxygen (O) and Selenium (S)

Multiple Choice

Find Calcium (Ca-#20) on your Periodic Table. Which of the elements below

would have similar properties as Calcium?

• Potassium

  K

• Scandium

  Sc

• Magnesium

  Mg

Multiple Choice

Find Lithium (Li-#3) on your Periodic Table. Which of the elements below

would not have similar properties as Lithium?

• Potassium

  K

• Hydrogen

  H

• Sodium

  Na

• Magnesium

  Mg