i need some clarification on a topic thats been driving me crazy of late. Normally when a species is more stable it is less reactive. For example I- is more stale than F- because the size of Iodine ion is larger and can handle negative charge better stabilizing it and making it less reactive. However in the case of carbocations and radicals, tertiary radicals are more stable than methyl radicals due to hyperconjugation making them MORE reactive. why does stability correlate with reactivity differently in this case?