p - block Elements
The inert gas which cannot be adsorbed over activated coconut charcoal?
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Single Choice
Which mineral was used in isolation of radium?
Alime stone
Bpitch blende
Correct Answer
Crectile
Dhaematite
Solution
On April 20, 1902, Marie and Pierre Curie successfully isolate radioactive radium salts from the mineral pitchblende in their laboratory in Paris. In 1898, the Curies discovered the existence of the elements radium and polonium in their research of pitch blende.
SIMILAR QUESTIONS
p - block Elements
The word Argon represents the term_______
p - block Elements
Which is the lightest gas?
p - block Elements
State reasons for the following: $$SF_{6}$$ is kinetically an inert substance.
p - block Elements
Account for the following: Noble gases have comparatively large atomic sizes.
p - block Elements
Give reasons for the following: Neon is generally used for warning signals.
p - block Elements
Which element has : Two shells, both of which are completely filled with electrons ?
p - block Elements
Name : The noble gas with $$ 3 $$ shells .
p - block Elements
The correct order of solubility in water for He, Ne, Ar, Kr, Xe is :
p - block Elements
The force acting between noble gas atoms are:
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