Periodic Table_Mastery_Set 1

The Periodic Table is a list of elements arranged in order of increasing proton number.

• TRUE

• FALSE

From left to right across the period, there is a decrease in metallic properties and increase in non-metallic properties.

• TRUE

• FALSE

The number of electron shells is the same as the period number of the element.

• TRUE

• FALSE

The number of valence electrons is the same as the group number of the element.

• TRUE

• FALSE

The chemical reactvity of alkali metals increase down the group.

• TRUE

• FALSE

The halogens become less reactive down the group.

• TRUE

• FALSE

The noble gases are unreactive due to their full electronic structures.

• TRUE

• FALSE