( ( ( An atom ) ( that ( ( is positively ) ( charged ( due ( to ( ( the loss ) ( of ( an electron ) ) ) ) ) ) ) ) ) ( ( is ( called ( ( ( a ( Positive Ion ) ) or ) CATION ) ) ) . ) )
(ROOT (S (NP (NP (DT An) (NN atom)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (ADVP (RB positively)) (VP (VBN charged) (PP (JJ due) (TO to) (NP (NP (DT the) (NN loss)) (PP (IN of) (NP (DT an) (NN electron)))))))))) (VP (VBZ is) (VP (VBN called) (NP (NP (DT a) (JJ Positive) (NN Ion)) (CC or) (NP (NNP CATION))))) (. .)))
An atom that is positively charged due to the loss of an electron is called a Positive Ion or CATION .
(ROOT (S (NP (NNS Cations)) (VP (VBP are) (VP (VBN formed) (PP (IN by) (NP (NP (DT the) (NN loss)) (PP (IN of) (NP (CD one) (CC or) (CD two) (NNS electrons))))) (PP (IN from) (NP (DT an) (NN element))))) (. .)))
Cations are formed by the loss of one or two electrons from an element.