Chapter 16

Question 1

What is the Periodic Table?

Answer 1

A list of elements arranged in order of increasing proton (atomic) numbers.

Question 2

How do metallic and non-metallic properties change from left to right across a period?

Answer 2

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

Question 3

How do metallic and non-metallic properties change down a group?

Answer 3

Going down a group, there is an increase in metallic properties and a decrease in non-metallic properties.

Question 4

How are number of electron shells and period number related?

Answer 4

The number of electron shells is equal to the period number of the element.

Question 5

What is the relationship between number of valence electrons and group number?

Answer 5

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

Question 6

What does an introduced more reactive halogen do to a less reactive halogen in its halide solution?

Answer 6

A more reactive halogen will displace a less reactive halogen from its halide solution.