The Student Room Group
Year 12s: what will be the first way you research your future options? >>
Year 12s: what will be the first way you research your future options? >>
Year 12s: what will be the first way you research your future options? >>

Cambridge Chemistry Challenge

Scroll to see replies

Reply 1780
Avatar for aarya
aarya
Some one please help me with silver level
(edited 10 years ago)
Reply 1781
Avatar for painorb
painorb
Original post by aarya
Some one please help me with silver level

Consider that liquid N2 is possible at 77K, not STP
Gold anyone? It's too vague...
Reply 1783
Avatar for painorb
painorb
Original post by ivana_a.h
Gold anyone? It's too vague...

look for differences in periodic table groups :wink:
Original post by painorb
look for differences in periodic table groups :wink:


What's with the ballpit in the background then?
Reply 1785
Avatar for painorb
painorb
Original post by Randophera
What's with the ballpit in the background then?


One of properties of atoms that it's not periodically distributed
Original post by painorb
One of properties of atoms that it's not periodically distributed


So let me get this straight...there's a percentage associated with every element in Au, and it's some random property that's not even distributed. And somehow the percentages are the same for barium, lithium, sodium, and potassium. Okay...still don't get it though...am I close?
Reply 1787
Avatar for painorb
painorb
Original post by Randophera
So let me get this straight...there's a percentage associated with every element in Au, and it's some random property that's not even distributed. And somehow the percentages are the same for barium, lithium, sodium, and potassium. Okay...still don't get it though...am I close?


Yes. Try to identify what property of metals is related with the idea of putting one group of balls one above another group
Original post by painorb
Yes. Try to identify what property of metals is related with the idea of putting one group of balls one above another group


Hmm...metals you say? Is it an electrical property? Thank you for answering my questions btw.
Original post by gingerbreadman85
00: 00: 01 tonight is the new one. If you registered, you should have got the email.


Thanks for informing. I didn't check my mail. :smile:
BTW, have you completed the challenge?
(edited 10 years ago)
Reply 1790
Avatar for pippy1
pippy1
Hints for rg
Reply 1791
Avatar for pippy1
pippy1
How does y correspond to x
Original post by pippy1
How does y correspond to x


If you're asking about Rg, then X is atomic number and Y is number of neutrons...

I still don't know what "value" is though... :-/
(edited 10 years ago)
Reply 1793
Avatar for painorb
painorb
Original post by vandanparmar
If you're asking about Rg, then X is atomic number and Y is number of neutrons...

I still don't know what "value" is though... :-/


You have an individual number of protons and neutrons, it is referring to a specific isotope. Check the properties of those isotopes and you will find the answer (I found it on Wikipedia)
Can't even get past entry level, haha, if anyone can help I will love you forever! :P I tried carbon/sulphur, or sugar and water and some other chemicals, and even trick stuff like fire and bonfire night, but I just cannot get it!

Got it now!! :biggrin:
(edited 10 years ago)
arrgghh now I don't get copper! any help will be greatly appreciated :biggrin:
Original post by majmuh24
Anyone got any hints for copper, something to do with density right?

Posted from TSR Mobile


Hey! I'm stuck on that too haha :tongue:

I tried seeing if each 'atom' ( if they're supposed to be atoms) had a value i.e. red = x, blue = y etc. but that didn't work, and the earth completely confused me! :O
Reply 1797
Avatar for ltigers
ltigers
Original post by economicsrocks
Hey! I'm stuck on that too haha :tongue:

I tried seeing if each 'atom' ( if they're supposed to be atoms) had a value i.e. red = x, blue = y etc. but that didn't work, and the earth completely confused me! :O



Original post by majmuh24
I think the first one is water, as it has a density of 1, but then I got stuck.

Any help?

Posted from TSR Mobile


it has nothing to do with density.the first one isnt water, look more closely.
Reply 1798
Avatar for aarya
aarya
In the last level the first column is the proton number then the second column is the neutrons and the last column is the nuclear spin value


Posted from TSR Mobile
Original post by majmuh24
I think the first one is water, as it has a density of 1, but then I got stuck.

Any help?

Posted from TSR Mobile


I'm still stuck, so no, sorry! Good luck though :smile:

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you