( ( All ( you ( need ( to ( know ( about ( these three ) ) ) ) ) ) ) ( ( is ( that ( they ( have ( ( the ( same ( chemical properties ) ) ) ( as ( lithium ( , ( ( sodium and ) potassium ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT All)) (SBAR (S (NP (PRP you)) (VP (VBP need) (S (VP (TO to) (VP (VB know) (PP (IN about) (NP (DT these) (CD three)))))))))) (VP (VBZ is) (SBAR (IN that) (S (NP (PRP they)) (VP (VBP have) (NP (NP (DT the) (JJ same) (NN chemical) (NNS properties)) (PP (IN as) (NP (NN lithium) (, ,) (NN sodium) (CC and) (NN potassium)))))))) (. .)))
All you need to know about these three is that they have the same chemical properties as lithium , sodium and potassium .
(ROOT (S (NP (NNP Lithium)) (VP (VBZ has) (NP (CD three) (NNS electrons))) (. .)))