f- prvky Flashcards

1
Q

ktoré prvky patria medzi f prvky a koľko ich je ?

A

14 prvkov
lantanoidy a aktinoidy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

kde s avyuživaju lantanoidy

A

v zliatinach, v optickych materialoch, laseroch, na vyrobu farebnych televíznych obrazoviek (Eu)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

ktoré lantanoidy sa vyskytuju v prirode ?

A

tórium, protaktinium, urán

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

urán a plutónium využitie

A

palivo jadrových reaktantov alebo ako jadrovych výbušnin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

najdôležitejšie zmesy izotopou uránu

A

235 a 236 92U

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

uraninit = smolinec

A

ruda uranu
U3O8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

ako sa získala čisty urán

A

z fluoridu uraničitého redukciou napr. horčikom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

čo u transurány

A

všetky prvky nachadzajuce sa za uranom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

store prvky boli pripravene jadrovimy reakciami

A

prvky 104 až 112

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

energia uvoľnená štiepením jedneho 1Kg 235U

A

8.10na6 kg uhlia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly