The atoms of gold are different from the atoms of silver. True or false? Give reason.

An atom differs from its ion in

All atoms of an element differ from each other.

In halogens (group 17) the atomic radius of chlorine is greater than the atomic radius of fluorine. Give reason.

The atomic size of beryllium is smaller than the atomic size of lithium. Give reason.

The atomic size of lithium is larger than the atomic size of beryllium. Give reason.

In group 1 the atomic radius of sodium is greater than the atomic radius of lithium. Give reason.

False statement for H atom -

98.5 kg of gold was recovered from a smuggler. The atoms of gold recovered are:

78.8 kg of gold was recovered from a smuggler. The atoms of gold recovered are:

Statement-1:In cyanide process for the extraction of gold and silver from their native ores, the cyanide solution acts as a reducing agent to reduce the gold and silver compounds present in the ores, into the metallic states. Statement-2:In the extraction of gold and silver the cyanide solution acts as complexing reagent in the presence of air and form their respective soluble complexes.