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 are rich in the mineral copper. An essential component of many enzymes, copper plays its part in a broad array of processes. One copper-containing enzyme, tyrosinase, converts tyrosine to melanin, which is the pigment that gives hair and skin its color.n the 16th century, the Portuguese introduced them to India and some African countries, where they are now also grown. What we call the cashew nut is actually the seed of this fruit. Cashews are rich in iron, phosphorus, selenium, magnesium and zinc.