[jennielynn_1980]

Element   Melting point (celcius)  Boiling Point (celsius) Molar Volume at STP     
    A           -189                             -186                          22.4
     B           -100                             -35                            22.4
     C           -7                                 58                           2.6 x 10^-2
     D            30                               2240                       1.2 x 10^-2
     E            44                               280                          1.7 x 10^-2                                
     F            660                              2450                       1.0 x 10^-2
    G             3410                           5930                         1.0 x 10^-2                       


a) which elements are likely to be metals?
F and G because of their high melting points

b) which elements are gases at STP?
A and B because their molar volume is 22.4 L at STP

c) which element is most likely to be a non-metallic solid?
D maybe, I don't know about this one

d) which elements are liquid at 200 C?
D and E because both melt before 200 C but do not boil until after this point - I am just guessing here

e) which elements are likely to conduct well in solid form?
F and G because they have high melting and boiling points.

So how does this look.  To be honest, I am really unsure of most of my answers except for a) and b).  Any help would be appreciated.  Even if you could nudge me in the right direction if I am wrong.

Thank alot

[Dan]

a) which elements are likely to be metals?
F and G because of their high melting points

yep

b) which elements are gases at STP?
A and B because their molar volume is 22.4 L at STP

Yep, also the boiling points give it away.

c) which element is most likely to be a non-metallic solid?
D maybe, I don't know about this one

Odd question, I think this could be D, E, F or G

d) which elements are liquid at 200 C?
D and E because both melt before 200 C but do not boil until after this point - I am just guessing here

yep

e) which elements are likely to conduct well in solid form?
F and G because they have high melting and boiling points.

Yeah, I suppose so.

These questions are a bit silly if you ask me. a and e are the same question, and c is pretty unanswerable in my opinion.

[Will]

c) which element is most likely to be a non-metallic solid?
D maybe, I don't know about this one

For question c, as a guess I would've said E because the low(er) boiling point is characteristic of non-metals- then when I looked at my periodic table I saw Phosphorus having identical properties confirming that belief. Also I know Gallium has an awkwardly low melting point (it melts in your hands, I was going to buy some...) so I knew that D was Ga, hence not a non-metal and you already knew F & G were metals and that A, B & C weren't solid, making E the only possible answer for question c.

[jennielynn_1980]

Thanks to both of you

I know these questions are silly.  I thought the same thing.  They are also a bit tricky to answer because as it was noted, some of the questions are the same and some seem to be unanswerable.  At least I know my somewhat logical answers are consistent with what both of you would have answered.

Thanks again.