How does a non-metal atom become an ion?

This question is about the ionic bond formed between the metal lithium (proton number $3$) and the non-metal fluorine (proton number $9$). 

Draw the structure of a fluoride ion, and write a symbol for it, showing its charge. 

This question is about the ionic bond formed between the metal lithium (proton number $3$) and the non-metal fluorine (proton number $9$). 

Draw a diagram to show what happens when a lithium atom reacts with a fluorine atom. 

This question is about the ionic bond formed between the metal lithium (proton number $3$) and the non-metal fluorine (proton number $9$). 

Write a word equation for the reaction between lithium and fluorine. 

This diagram represents a molecule of a certain gas. 

Name the gas, and give is formula.

This diagram represents a molecule of a certain gas. 

What do the symbols • and x symbols represent?

This diagram represents a molecule of a certain gas. 

Which type of bonding holds the atoms together?

This diagram represents a molecule of ammonia.

Name another compound with this type of bonding.