Mercury and lead (पारा, सीसा) metal in chemistry part-10
21:54
Calcium ( कैल्सियम) in detail Chemistry part-11
17:58
Understanding Metals
1:25:34
Investigating the Periodic Table with Experiments - with Peter Wothers
4:41
क्या "पारा" ले सकता है आपकी जान | Can "Mercury" Take Your Life?
11:53
How to make Plutonium
25:20
Toxicology (Part-15) Mercury Poisoning Cause, Symptoms and Treatment | Mercury Toxicity Antidotes
15:27
How 2 Fundamental Forces Unite: Electromagnetism & The Weak force - Electroweak force
33:27