( ( In ( crystalline solids ) ) ( , ( ( the ( atoms ( , ( ( ions or ) molecules ) ) ) ) ( ( are ( arranged ( in ( ( an ( ( ( ordered and ) symmetrical ) pattern ) ) ( that ( is ( repeated ( over ( the ( entire crystal ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (JJ crystalline) (NNS solids))) (, ,) (NP (DT the) (NNS atoms) (, ,) (NNS ions) (CC or) (NNS molecules)) (VP (VBP are) (VP (VBN arranged) (PP (IN in) (NP (NP (DT an) (ADJP (JJ ordered) (CC and) (JJ symmetrical)) (NN pattern)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (VP (VBN repeated) (PP (IN over) (NP (DT the) (JJ entire) (NN crystal))))))))))) (. .)))
In crystalline solids, the atoms, ions or molecules are arranged in an ordered and symmetrical pattern that is repeated over the entire crystal.
(ROOT (S (NP (NNS Solids)) (VP (VBP are) (VP (VBN categorized) (PP (IN by) (NP (NP (DT the) (NNS forces)) (VP (VBG holding) (NP (NP (DT the) (JJ individual) (NNS atoms)) (, ,) (NP (NNS ions)) (, ,) (CC or) (NP (NNS molecules))) (ADVP (RB together))))))) (. .)))