Use the list to answer the question. potassium, Group 1
calcium, Group 2
iodine, Group 17
neon, Group 18

Which two elements in the list would bond together based on their ionic charges?
If you could describe to me how that would be appreciated

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.