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.
This is called the stigma and it is this part of the carpel which collects the pollen from insect bodies. The daisy: A composite flower. The daisy is pollinated by a variety of animals which are attracted to it by its bright yellow centre and white petals.The daisy, however, is not one flower. It is made up of two types of small flowers which are arranged to give the impression of being a single flower.his is called the stigma and it is this part of the carpel which collects the pollen from insect bodies. The daisy: A composite flower. The daisy is pollinated by a variety of animals which are attracted to it by its bright yellow centre and white petals.