When comparing two transition metals...is there a way to compare their...

[csx]

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densities? I had to pick which a gamma ray would have a harder time penetrating. Gold vs Iron. Its gold. I said iron 🙁

how was i supposed to know without any density values given?? my only guess is it has to do with atomic # (gold is higher). So the higher the A# the more dense something is?...idk? ughh

 

[justadream]

@csx

Just look at molecular mass.

 

[GoldenTuth]

Dude. When you go and take an X-ray do they put aluminum foil on you or a lead vest? Why? The more dense the metal the harder it is for radiation to penetrate, and it's directly proportional with weight. Think water, 1 liter of liquid water weighs 1000 grams, 1 liter of frozen water will weight less per volume because density of ice is much lower now. (Disregard phases)

 

[Teleologist]

Think water, 1 liter of liquid water weighs 1000 grams, 1 liter of frozen water will weight less because density of ice is much lower now. (Disregard phases)

How about you weigh some liquid water, freeze it, and weigh it again, and get back to me?

 

[justadream]

How about you weigh some liquid water, freeze it, and weigh it again, and get back to me?

I think he's saying if you freeze enough water to take up a liter of volume.

In other words, if you had a huge chunk of ice and you cut out enough to fill a 1-liter container. Once this melted, it would not take up 1 liter of volume.

 

[GoldenTuth]

How about you weigh some liquid water, freeze it, and weigh it again, and get back to me?

Reread what I said you're missing what I said