they slowly transform into other isotopes of the same element through gaining or losing neutrons, and eventually they become other elements entirely. This depends on their decay rate, which is known as a half-life. Uses of radioisotopes often depend on their half...
radioactive elements and pesticides can be found in dry plant material [21,22]. It should be emphasized that there are also some metals that are useful for human health (Cu and Zn). Their concentrations differ depending on many factors but should not be exceeded. The tea plant is able to...