1 kg ----------- 2.20462 pounds
1.8 kg -------- ??
1.8 x 2.20462 / 1 => 3.96832 pounds
Answer: I think probaly wrong so probaly dont
listen to me
Explanation:
Answer:
The first one
Explanation:
I can't read them well: it should be 
** this is the expanded version
iondine
Explanation:
bromine has 185pm, astatine haa 200, iondine has 140 and lastly fluorine has 147. so iondine has the smallest atomic radius