Top Posters
Since Sunday
e
7
t
7
f
6
e
6
c
6
J
6
e
6
j
6
F
6
a
6
u
6
o
6
New Topic  
bug2012 bug2012
wrote...
Posts: 89
Rep: 0 0
11 years ago
I am in Integrated science 1, and I need to know what elements from the periodic table are radioactive in its most ommon form. Please help Slight Smile
Read 2439 times
2 Replies
Replies
Answer accepted by topic starter
julie7julie7
wrote...
Posts: 111
Rep: 0 0
11 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

wrote...
11 years ago
Technetium, promethium (atomic numbers 43 and 61, respectively) and all the elements with an atomic number greater than 82 have only isotopes that are known to decompose through radioactive decay.
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1005 People Browsing
Related Images
  
 312
  
 294
  
 273