An extremely unstable, radioactive element of the alkali group. It is the heaviest metal of the group. Francium occurs in nature, but less than 28.35 g (1 oz) is present in the Earth's crust at any time. It has approximately 19 isotopes, the most stable of which is Fr 223 with a half-life of 21 minutes. Atomic number 87; valence 1.
Cashews, unlike peanuts, come from a tree. Inside a stem of the fruit, the cashew nut lives. The fruit is called a cashew apple. The Cashew apple is eatable, however, the cashew nut is the main product produced by this tree. However, the cashew nut is not flesh to eat right away.The stem is very poisonous.It contains an acid-like oil that can only be burned out of the stem.nside a stem of the fruit, the cashew nut lives. The fruit is called a cashew apple. The Cashew apple is eatable, however, the cashew nut is the main product produced by this tree. However, the cashew nut is not flesh to eat right away.
Cashews do contain a good bit of iron but as with all plant-based sources of iron (non-heme iron), they contain iron blockers that keep you from absorbing all of the iron that you otherwise would.n the category of nuts and seeds, we included whole nut and seed products in the Top 10 list, including cashew butter which is a bit more dense than cashews and a little bit higher in iron as a result. Foods may be fortified with iron but are not included in this Top 10 list.