The most stable of niobium's isomers is 93m Nb with a half-life of 16.13 years. The least stable isomer is 84m Nb with a half-life of 103 ns. All of niobium's isomers decay by isomeric transition or beta decay except 92m1 Nb, which has a minor electron capture decay chain.
Sunflower (photo by Yves Couder) Why is it that the number of petals in a flower is often one of the following numbers: 3, 5, 8, 13, 21, 34 or 55? For example, the lily has three petals, buttercups have five of them, the chicory has 21 of them, the daisy has often 34 or 55 petals, etc. Furthermore, when one observes the heads of sunflowers, one notices two series of curves, one winding in one sense and one in another; the number of spirals not being the same in each sense.
Here are the best daisy companion plants to grow in your flowerbeds. The most common and popular daisy varieties are the Shasta Daisies. The shasta daisy is the classic white daisy with the yellow center that everyone knows and appriciates. The other very popular daisy flower is the Gerber Daisy Plant. All daisy flowers look wonderful combined with roses. I use lots of daisies in my rose garden beds. Daisy Bridal Bouquets are very beautiful, especially when combined with roses.