Manage your subscription. Check your subscription package, update your details, renew or upgrade.
Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table.In some respects zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn 2+ and Mg 2+ ions are of similar size.
Fig. 1. Classification of silicates (Bailey, 1980b; Rieder et al., 1998). Minerals that can be frequently found in bentonite or kaolin are in bold; the
Urban Agriculture Shirley's edible Rooftop Container Garden. Abundance of fresh, healthy fruits and vegetables can be grown organically and inexpensively in containers virtually anywhere: At the edges of parking lots, along railroad tracks, on back porches, on rooftops, in patios, in driveways, in vacant lots between buildings, and in brown
Sodium, 11 Na General properties; Appearance: silvery white metallic: Standard atomic weight (A r, standard): 22.989 769 28 (2): Sodium in the periodic table
Uranium (chemical symbol U) is a naturally occurring radioactive element. In its pure form it is a silver-coloured heavy metal, similar to lead, cadmium and tungsten.
Sea salt is a natural salt useful in the kitchen and for numerous health applications including bladder infections, sore throats and skin issues.
EPA sets limits on environmental radiation from use of radioactive elements. The Radiation Protection website describes EPA's radiation protection activities, regulations and supporting information.
[ Below is a post by Art Berman which I found interesting because Im concerned about whether enough diesel can be made in the future to keep trucks running.
Calcium: Calcium, one of the alkaline earth metals, chemical symbol Ca, atomic number 20, the most abundant metallic element in the human body.