An atom of an element has two shells with electrons.The valence shell has 2n + 1 electrons where n is the number of electrons in the innershell. This element can form a radical X with hydrogen and two radicals Y and Z with oxygen, Z has more number of oxygen than Y. Identify the element and the radicals. Write the reaction taking place between solutions of two salts, AgZ and XCl. Identify the type of reaction.

Explanation

K shell can have only 2 electrons. That means n=2 and the number of electrons in L shell is 2n+1 which is equal to 5. The electronic arrangement that is 2,5 corresponds to nitrogen. Nitrogen can form `NH_(4)^(+)` with hydrogen. Y is `NO_(2)^(-)and Z" is " NO_(3)^(-)`.
`AgNO_(3)+NH_(4)Cl toNH_(4)NO_(3)`
This is a double decomposition reaction where silver chloride being insoluble settles at the bottom.
Therefore, this is a precipitation reaction.