(2 3) Using lewis dot diagrams show the formation of the following ionic compounds.
marks each)
a) Na2o
b) Al2S3

4) Draw a Lewis diagram for each of the following atoms. Then determine the number of
bonding electrons and the number of lone pairs for each.
a) Al
b) S

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

can you attach the