Determining Valence Electrons from the Periodic Table

What do groups on the periodic table represent?

• Isotopes of elements

• Columns of elements

• Periods of elements

• Rows of elements

How many valence electrons do elements in group 1 have?

• Three

• Two

• Four

• One

Which group of elements is skipped when discussing valence electrons due to complexity?

• Transition metals

• Group 2

• Group 8

• Group 1

How many valence electrons do elements in group 3 have?

• One

• Two

• Four

• Three

Which element in group 8 is an exception with only two valence electrons?

• Helium

• Krypton

• Argon

• Neon

What is another way to write group 13 on the periodic table?

• Group 14

• Group 18

• Group 1

• Group 3

How many valence electrons do elements in group 15 have?

• Three

• Four

• Five

• Six

How many valence electrons does phosphorus have?

• Four

• Three

• Six

• Five

Which group does magnesium belong to and how many valence electrons does it have?

• Group 1, one valence electron

• Group 2, two valence electrons

• Group 4, four valence electrons

• Group 3, three valence electrons

Why is copper not considered when discussing valence electrons in this video?

• It is a noble gas

• It has too many valence electrons

• It is a transition metal

• It has no valence electrons

Tags

NGSS.HS-PS1-1