A chemical species is one of a group of atoms, molecules, molecular fragments, ions, etc., made to go through to a chemical process or to a measurement. Generally, a chemical species can be defined as an ensemble of chemically identical molecular entities that can explore the same set of molecular energy levels on a defined time scale. Chemists also use chemical species to mean a set of chemically identical atomic or molecular structural units in a solid array.
ʌ WORD_BOUNDARY k ɛ m ɪ k ə l WORD_BOUNDARY s p iː s iː z WORD_BOUNDARY ɪ z WORD_BOUNDARY w ʌ n WORD_BOUNDARY ə v ə WORD_BOUNDARY ɡ ɹ uː p WORD_BOUNDARY ʌ v WORD_BOUNDARY æ t ə m z WORD_BOUNDARY m ɑ l ɪ k j uː l z WORD_BOUNDARY m ə l ɛ k j ʊ l ə ɹ WORD_BOUNDARY f ɹ æ ɡ m ə n t s WORD_BOUNDARY aɪ ɑ n z WORD_BOUNDARY ɛ t s ɛ t ɹ ə WORD_BOUNDARY m eɪ d WORD_BOUNDARY t ə WORD_BOUNDARY ɡ oʊ WORD_BOUNDARY θ ɹ uː WORD_BOUNDARY t ʊ WORD_BOUNDARY ʌ WORD_BOUNDARY k ɛ m ɪ k ə l WORD_BOUNDARY p ɹ ɑ s ɛ s WORD_BOUNDARY ɔ ɹ WORD_BOUNDARY t ʊ WORD_BOUNDARY ʌ WORD_BOUNDARY m ɛ ʒ ə ɹ m ə n t WORD_BOUNDARY d̠ʒ ɛ n ə ɹ ɹ ə l i WORD_BOUNDARY ʌ WORD_BOUNDARY k ɛ m ɪ k ə l WORD_BOUNDARY s p iː s iː z WORD_BOUNDARY k æ n WORD_BOUNDARY b iː WORD_BOUNDARY d ɪ f aɪ n d WORD_BOUNDARY æ z WORD_BOUNDARY ʌ n WORD_BOUNDARY ɑ n s ɑ m b ə l WORD_BOUNDARY ʌ v WORD_BOUNDARY k ɛ m ɪ k l i WORD_BOUNDARY aɪ d ɛ n t ɪ k ə l WORD_BOUNDARY m ə l ɛ k j ʊ l ə ɹ ɹ WORD_BOUNDARY ɛ n t ɪ t i z WORD_BOUNDARY ð æ t WORD_BOUNDARY k æ n WORD_BOUNDARY ɛ k s p l ɔ ɹ WORD_BOUNDARY ð ə WORD_BOUNDARY s eɪ m WORD_BOUNDARY s ɛ t WORD_BOUNDARY ʌ v WORD_BOUNDARY m ə l ɛ k j ʊ l ə ɹ ɹ WORD_BOUNDARY ɛ n ə ɹ d̠ʒ i WORD_BOUNDARY l ɛ v ə l z WORD_BOUNDARY ɔ n WORD_BOUNDARY ʌ WORD_BOUNDARY d ɪ f aɪ n d WORD_BOUNDARY t aɪ m WORD_BOUNDARY s k eɪ l WORD_BOUNDARY k ɛ m ɪ s t s WORD_BOUNDARY ɔ l s oʊ WORD_BOUNDARY j uː s WORD_BOUNDARY k ɛ m ɪ k ə l WORD_BOUNDARY s p iː s iː z WORD_BOUNDARY t ə WORD_BOUNDARY m iː n WORD_BOUNDARY ʌ WORD_BOUNDARY s ɛ t WORD_BOUNDARY ʌ v WORD_BOUNDARY k ɛ m ɪ k l i WORD_BOUNDARY aɪ d ɛ n t ɪ k ə l WORD_BOUNDARY ʌ t ɑ m ɪ k WORD_BOUNDARY ɔ ɹ WORD_BOUNDARY m ə l ɛ k j ʊ l ə ɹ WORD_BOUNDARY s t ɹ ʌ k t̠ʃ ə ɹ ɹ ə l WORD_BOUNDARY j uː n ɪ t s WORD_BOUNDARY ɪ n WORD_BOUNDARY ʌ WORD_BOUNDARY s ɑ l ɪ d WORD_BOUNDARY ə ɹ ɹ eɪ WORD_BOUNDARY