Ionic Compounds Between A Metal And Non Metal

Question 0

What happens to atoms that gain / lose electrons?

Answer 0

atoms that lose electrons become positively charged ions. Atoms that gain electrons become negatively charged ions

Question 1

When do ions form?

Answer 1

When atoms gain or lose electrons to get the electronic structure of a noble gas (group 0)

Question 2

What do the elements in group one form when reacted with all non metal elements

Answer 2

Ionic compounds in which the metal ion has a single positive charge

Question 3

What do the elements in group 7 (the halogens) react with all alkali metals form

Answer 3

Ionic compounds in which the halide puns have a single negative charge

Question 4

The charge on a simple ion depends on the group number of the element in the periodic table

Answer 4

Group one ions have a +1 charge
Group 2 ions have a +2 charge
Group 7 ions have a -1 charge
Group 6 ions have a-2 charge

Question 5

What is an ionic compound?

Answer 5

A regular giant structure of ions called a giant ionic lattice

Question 6

What are ionic compounds held together by?

Answer 6

Strong electrostatic forces of attraction between oppositely charged ions. These forces act in all directions in the lattice and this is called ionic bonding

Question 7

Why do ionic compounds have high melting and boiling points?

Answer 7

Because of the large amounts of energy needed to break the strong ionic bonds they are solid at room temperature

Question 8

Why can’t solid ionic compounds conduct electricity but when melted or dissolved can?

Answer 8

Solid ionic compounds can’t as the ions can’t move. But when melted or dissolved in water they can because the ions are free to move and carry the current