Complex sentence: In 1968, the team searched for alpha decay from 260 104 but were unable to detect such activity, but in 1970 repeated the chemistry experiment and obtained identical results to their 1966 experiment.
Split into simpler sentences: In 1968, the team searched for alpha decay from 260 104 but did not detect such activity. In 1970 repeated the chemistry experiment and obtained identical results to their 1966 experiment.