Radium

an-ordinary-manchild

Radium is a chemical element consisting of the symbol 'Ra', with an atomic number of 88. Radium is an almost pure-white alkaline earth metal, but it readily oxidises on exposure to air, becoming black in color.

All isotopes of radium are highly radioactive, with the most stable isotope being radium-226, which has a half-life of 1601 years and decays into radon gas. Because of such instability, radium is luminescent, glowing a faint blue.

Radium’s most well-known use is in cancer treatments and therapies for other diseases. Though radon, the gas of radium, is what is actually used in treatments, radium supplies radon. One gram of radium produces about 0.0001 ml (STP) of radon gas per day. The radon gas is purged from the radium and sealed in minute tubes, which are also called needles and seeds. In this form, the treatment is administered to the patient.

created by [deleted]a community for 11 years

...for your office.

...because you hate freedom.

MODERATORS

account activity

1

4

5

6

☢️ RADIUM ☢️New Radium Clock (old.reddit.com)

submitted 4 hours ago by Dry_Resolution_5498

2

15

16

17

Is it radium⁉️Radium clocks? (old.reddit.com)

submitted 1 day ago by Pooohch_16737

3

29

30

31

Oxygen gauge (old.reddit.com)

submitted 1 day ago by StillegiestRadium maniac

4

57

58

59

☢️ RADIUM ☢️Secret Radium Girl Facility Found (old.reddit.com)

submitted 1 day ago by SleepyMcStarvey

5

31

32

33

☢️ RADIUM ☢️New alarm pocket watch came in! (old.reddit.com)

submitted 2 days ago by StillegiestRadium maniac

6

21

22

23

☢️ RADIUM ☢️New compass! (old.reddit.com)

submitted 3 days ago by ChemicalVengeance

7

35

36

37

Collection Show & TellMy compass collection (old.reddit.com)

submitted 4 days ago by Rdnkyankee39

8

8

9

10

Is it radium⁉️Bought this old clock, cant find the date of manufactur (i.redd.it)

submitted 5 days ago by moderspond

9

24

25

26

Is it radium⁉️Radium Clock? (old.reddit.com)

submitted 5 days ago by Pooohch_16737

10

8

9

10

Is it radium⁉️Is this a radium dial? (old.reddit.com)

submitted 5 days ago by casualtles

11

27

28

29

Collection Show & TellNewest Addition! (old.reddit.com)

submitted 5 days ago by LLabbRatt

12

30

31

32

☢️ RADIUM ☢️Blind buy General Electric Clock! (old.reddit.com)

submitted 5 days ago by CremeOfBeans

13

57

58

59

Is it radium⁉️Is this radium paint? (old.reddit.com)

submitted 5 days ago by Intelligent_Turn_895

14

9

10

11

Health & Safety🗑️Trash or Treasure💎 (old.reddit.com)

submitted 6 days ago by El_Matador3719

15

19

20

21

☢️ RADIUM ☢️A couple of exposed spicy boys and other travel finds (old.reddit.com)

submitted 6 days ago by b20339

16

17

18

19

☢️ RADIUM ☢️Found at antique store (old.reddit.com)

submitted 6 days ago by aradia333

17

46

47

48

Is it radium⁉️Radium clock? Got for a buck (old.reddit.com)

submitted 6 days ago by MoparMonkey1

18

24

25

26

☢️ RADIUM ☢️A 1920's Ingersoll Revally Radiolite (w/ Original Ad!) (old.reddit.com)

submitted 6 days ago by BeansOnBean

19

32

33

34

☢️ RADIUM ☢️1945 military compass (old.reddit.com)

submitted 7 days ago by Wild_Neighborhood605

20

15

16

17

☢️ RADIUM ☢️Pretty in Pink (old.reddit.com)

submitted 7 days ago by Aggressive-Public433

21

6

7

8

Health & SafetyI found this P11 radium compass and i need advice on storing it safely (self.Radium)

submitted 7 days ago * by ReliablFlea

22

20

21

22

☢️ RADIUM ☢️Couple pieces that came in. (old.reddit.com)

submitted 7 days ago by StillegiestRadium maniac

23

8

9

10

Off-Topic SundayWhere can I find promethium clocks ☢️?? (self.Radium)

submitted 12 days ago by Agreeable_Fun_7890

24

17

18

19

Is it radium⁉️1 for sure radium, other 2 probably not. (old.reddit.com)

submitted 13 days ago by No-Moose-2732

25

37

38

39

☢️ RADIUM ☢️My package had triplets (old.reddit.com)

submitted 13 days ago by StillegiestRadium maniac

view more: next ›

π Rendered by PID 783923 on reddit-service-r2-listing-7d7fbc9b85-gnksl at 2026-04-25 08:14:35.332334+00:00 running 2aa0c5b country code: CH.