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75–67 Ma, Campanian to Maastrichtian Horseshoe Canyon Formation, Alberta, Canada A lambeosaurine hadrosaur that has a tall, hollow rounded crest similar to Corythosaurus. The animal is estimated to have been around 9.1 m (30 ft) long, and to have weighed up to 4.0 tonnes (4.4 tons). †Kamuysaurus †Kamuysaurus japonicus; 72.4-70.6 Ma
In statistics, a k-th percentile, also known as percentile score or centile, is a score below which a given percentage k of scores in its frequency distribution falls ("exclusive" definition) or a score at or below which a given percentage falls ("inclusive" definition); i.e. a score in the k-th percentile would be above approximately k% of all scores in its set.
For example, a ratio of 3:2 is the same as 12:8. It is usual either to reduce terms to the lowest common denominator, or to express them in parts per hundred . If a mixture contains substances A, B, C and D in the ratio 5:9:4:2 then there are 5 parts of A for every 9 parts of B, 4 parts of C and 2 parts of D.
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Germanium (32 Ge) has five naturally occurring isotopes, 70 Ge, 72 Ge, 73 Ge, 74 Ge, and 76 Ge. Of these, 76 Ge is very slightly radioactive, decaying by double beta decay with a half-life of 1.78 × 10 21 years [4] (130 billion times the age of the universe).
In terms of emissions, ... 72.1 74.0 72.9 75.8 77.6 72.4 Average dew point °F ... (cm) 9.2 (23) 8.6 (22) 9.3 (24) 1.5 (3.8) 0.0
The longest-lived of these isotopes, and the most relevantly studied, are 90 Sr with a half-life of 28.9 years, 85 Sr with a half-life of 64.853 days, and 89 Sr (89 Sr) with a half-life of 50.57 days. All other strontium isotopes have half-lives shorter than 50 days, most under 100 minutes.
This element also has 19 meta states, of which the most stable is 58m1 Co with a half-life of 8.853 h. The isotopes of cobalt range in atomic weight from 50 Co to 78 Co. The main decay mode for isotopes with atomic mass less than that of the stable isotope, 59 Co, is electron capture and the main mode of decay for those of greater than 59 ...