Based on the clue 'atomic no 22 this metal was named for some mytholo...', what is the answer?

Based on the clue 'atn corporation recommends its cougar model of the...', what is the answer? Based on the clue 'atom bomb dropped on hiroshima', what is the answer? Based on the clue 'atomic this word describing the central region of...', what is the answer? Based on the clue 'atomic element 15 its the only element to fit the ...', what is the answer? Based on the clue 'atomic number 10 this odorless gaseous element is ...', what is the answer? Based on the clue 'atomic number 13 you touch it when you unwrap a st...', what is the answer? What is referred to by 'atomic number 20'? Based on the clue 'atomic number 27 this silvery metallic element is ...', what is the answer?