Trends in groups within the Periodic Table

What are the elements in Group 1 of the Periodic Table called?

• Halogens

• Noble gases

• Alkali metals

• Transition metals

Which of the following elements are alkali metals?

• Lithium, sodium, and potassium

• Fluorine, chlorine, and bromine

• Helium, neon, and argon

• Iron, copper, and gold

What happens to the atomic number as you go down Group 1?

• It increases

• It decreases

• It remains the same

• It fluctuates

The mass number (a)   as you go down Group 1.

• It increases
• It decreases
• It remains the same
• It fluctuates

What happens to the size of the atoms as you go down Group 1?

• It increases

• It decreases

• It remains the same

• It fluctuates

What happens to the melting point of alkali metals as you go down Group 1?

• It increases

• It decreases

• It remains the same

• It fluctuates

What is the electronic structure of lithium?

• 2,1

• 2,8,1

• 2,8,8,1

• 2,7

The electronic structure of sodium is (a)   .

• 2,1
• 2,8,1
• 2,8,8,1
• 2,7

What is the electronic structure of potassium?

• 2,1

• 2,8,1

• 2,8,8,1

• 2,7

What is the trend in the number of electrons in the outermost shell of alkali metals as you go down Group 1?

• The number of electrons increases

• The number of electrons decreases

• The number of electrons remains the same

• The number of electrons fluctuates