( ( ( Multiple ( Covalent Bonds ) ) ( ( a ( -RRB- Atoms ) ) ( with ( ( fewer ( than seven ) ) ( valence electrons ) ) ) ) ) ( ( can ( ( form ( covalent bonds ) ) ( in ( two ways ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Multiple) (NNP Covalent) (NNPS Bonds)) (PP (NP (DT a) (-RRB- -RRB-) (NNP Atoms)) (IN with) (NP (QP (JJR fewer) (IN than) (CD seven)) (JJ valence) (NNS electrons)))) (VP (MD can) (VP (VB form) (NP (JJ covalent) (NNS bonds)) (PP (IN in) (NP (CD two) (NNS ways))))) (. .)))
Multiple Covalent Bonds a) Atoms  with fewer than seven valence electrons can form covalent bonds in two ways.
(ROOT (S (NP (NNP Valence)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (JJ covalent) (NNS bonds))))) (SBAR (S (NP (DT an) (NN atom)) (VP (MD can) (VP (VB form))))))) (. .)))
Valence is the term for the number of covalent bonds an atom can form.