Transuranic element?? (1 Viewer)

ballerinabarbie

bundy for me
Joined
Mar 21, 2003
Messages
719
Location
Somewhere in NSW... who knows?
Gender
Female
HSC
2003
omg i have no idea what a transuranic element was - let alone how it was produced!! hopefully that question will be marked 2 marks for the radioisotope and 2 marks for the transuranic element...
oh and the transuranic element in multi choice? chromium or caesium? or something else??
 

pdarkness

Socialist weasel
Joined
Sep 28, 2003
Messages
28
Location
Canberra
Gender
Male
HSC
2003
answer

Uranium has the highest atomic number of naturally occuring elements: 92. Elements with a higher than A.N 92 can be artificially made from neutron bombardment and high speed positive bombardment, these are transuranic elements. And for the multi choice, you just had to find the element with a higher than 92 atomic number, its curium
 

crazylilmonkee

Active Member
Joined
Aug 21, 2003
Messages
1,121
Gender
Female
HSC
2003
ditto..
i had no idea
crapped on bout cyclotrons and stuff
dunno it was correct
m/c i think it was d
 

tegs

Member
Joined
Sep 4, 2003
Messages
102
Location
Bathurst
I know, i bullshitted about cyclotrons and reactors and got it all wrong I think. Oh well.
I put curium too, yay!!!
 

Ragerunner

Your friendly HSC guide
Joined
Apr 12, 2003
Messages
5,472
Location
UNSW
Gender
Male
HSC
2003
They reactors/cyclotron is right

They bombard elements to make them neutron-rich and as a result will decay.
 

braindrainedAsh

Journalist
Joined
Feb 20, 2003
Messages
4,268
Location
Sydney
Gender
Female
HSC
2003
Well I talked about the reactors and particle accelerators and bombarding the atom with neutrons even though I really had only a vague idea about this lol so hopefully I will get some marks!
 

Ragerunner

Your friendly HSC guide
Joined
Apr 12, 2003
Messages
5,472
Location
UNSW
Gender
Male
HSC
2003
I put some equations to make it look good :D
 

iambored

dum-di-dum
Joined
Apr 27, 2003
Messages
10,862
Location
here
Gender
Undisclosed
HSC
2003
Originally posted by pdarkness
neutron bombardment and high speed positive bombardment,
hmm... i think i put positive :confused: because neutron wouldn't work for my eqiations, even though i thought it was right
Originally posted by sneaky pete
i put down curium
same
 

Affinity

Active Member
Joined
Jun 9, 2003
Messages
2,062
Location
Oslo
Gender
Undisclosed
HSC
2003
Originally posted by Ragerunner
I put some equations to make it look good :D
yeah.. it's probably one mark for examples/equations for each.
 

Exeter

Resident Megaphone
Joined
Jun 15, 2003
Messages
405
Location
Sydney
Gender
Male
HSC
2003
for the neutron bombardment it cant be too high of a speed otherwise it just smashes the atom (a la physics course) it needs to be slow moving so it absorbs it, then its Neutron:proton ratio will be outside the zone of stability and undergo beta decay which raises atomic number by 1
 

Exeter

Resident Megaphone
Joined
Jun 15, 2003
Messages
405
Location
Sydney
Gender
Male
HSC
2003
example i just did, if u do neutron bombardment on a u-238 u get this

(238 92)U + (1 0)n --> (239 92)U --> (239 93)Np + (0 -1)e

[i think its neptunium, cant relally remember]

for commercial i talked about technitium99m and americium 241
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top