Complete this table:Type of bond 12Kinds of Atoms1 non-metals2Electrons are12 lost and gainedResult1 molecules2Explain why ionic compounds which consist of electrically charged ions packed together, are electrically neutralUse sodium chloride as an example.What would happen for an oxide ion O to power of 2 negative; to become an oxygen atom?Copper ions are never found on their ownWhy is this?Which of the following molecules would you expect to be polar: ammonia(NH3), chlorine(CI2), carbon monoxide(CO), hydrogen bromide(HBr), hydrogen sulfide(H2s) and nitrogen(H2)?The red colour of blood is due to ironWould this color be due to iron atoms or iron ions? Explain.Why is it wrong to speak of molecules of sodium chlorise? What should you say instead?
How many electrons magnesium atom have? 12 How many electrons magnesium ion have? 10 How many protons are there in the nucleus of a magnesium ion? 12
A capacitor can be made by two pennies separated by a thin piece of plasticDrill two holes in the pennies and solder wire to eachMake a sandwich the plastic in between the penniesA transformer can be made with a nail and wireTake one wire and wrap it around the nail for about 1/2Take a second wire wrap it around the other endThen difference in the number of wires will determine the characteristics of the transformerThe first wire will induce a magnetic field in the nailThe magnetic field will induce a current in the second wire.
