Periodicity

What element in period 3 is a metalloid?  

• Aluminium

• magnesium

• phosporus

• silicon

What are the Group 1 elements called?

• Alkaline earth metals

• transition metals

• alkali metals

• Halogens

By what property did Mendeleev arrange the elements?

• atomic number

• atomic mass

• number of neutrons

• reactivity

What is the general trend of reactivity as you go down the periodic table in Group 7?

• decrease

• increase

Where, generally, are the metals located on the periodic table?

• on the left

• on the right

What is the general trend of hardness as you go down on the periodic table in group 1?

• decrease

• increase

What is the general trend of melting point as you go down in group 2 on the periodic table?

• decrease

• increase

Which alkali metal belongs to the sixth period?

• Cs

• Fr

• Rb

• Na