Can the diagonal relationship be considered between (c, p), (n, s), (ও, cl), (f,ar)? upon which main factors or properties this relationship is considered?

atomic size, electronegativity, properties are similar in nature, so these factors are considered

yes, these can show diagonal relationship.

on both descending a period and crossing a group by one element, the changes "cancel" each other out, and elements with similar properties which have similar chemistry are often fo...