Okay thanks for reminding me
Answer: 1and 4
Explanation: iron is an element not an alloy. An ionic lattice is not bonded covalently.
OK,lisen to me slowly,
all define you.all thing
1.Look at peridoic table which one is solid or others.
For example:hydrogen is air.
And you gonna explain what is hydrogen,
2.After look periodic table you will be able to know every element.
3.Dont forget to check your homework.!!