Subject	isotope
Predicate	have
Object	different mass
Modality	Modality Occurrences TBC[different atomic masses] 1
Polarity	POSITIVE
Plausibility	0.9841
Neighborhood Sigma	0.9847
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source isotopes have different masses 4 Google Autocomplete, Answers.com Questions isotopes of an element have different masses 1 Google Autocomplete isotopes have different atomic masses 1 Google Autocomplete isotopes have different mass from one another 2 Answers.com Questions isotopes of an atom have different masses 1 Answers.com Questions