Group 3 element, · Group 3 is a group of elements in the periodic table.This group, like other d-block groups, should contain four elements, but it is not agreed what elements belong in the group.Scandium (Sc) and yttrium (Y) are always included, but the other two spaces are usually occupied by lanthanum (La) and actinium (Ac), or by lutetium (Lu) and lawrencium (Lr); less frequently, it is considered the group ...Metal, · Although production costs are relatively high an advantage of these materials is their facile desorption of the adsorbed metals . In recent years, several methods of surface modification of mineral sorbents by different surfactants have been described  ,  ,  .List of elements in the periodic table, · Scandium 21 When you need tools Sc No Titanium 22 strong but lightweight, artificial bones, aircraft parts Ti No Vanadium 23 In tools V No Chromium 24 Chrome plating, stainless steel Cr No Manganese 25 Alloying with steel and aluminum Mn No Iron 26 FeBiohacking Inositol | Jack Kruse Optimal Health Forum, · Registering for the Forum We require a human profile pic upon registration on this forum. After registration is submitted, you will receive a confirmation email, which should contain a link to confirm your intent to register for the forum. At this point, you will not yet be registered on the forum. ...Selenium, · Selenium is found in metal sulfide ores, where it partially replaces the sulfur. Commercially, selenium is produced as a byproduct in the refining of these ores, most often during production. Minerals that are pure selenide or selenate compounds are known but and.
Cobalt Metal Characteristics, · Production of Cobalt Cobalt naturally occurs in nickel-bearing laterites and nickel-copper sulfide deposits and, thus, is most often extracted as a by-product of nickel and copper. According to the Cobalt Development Institute, about 48% of cobalt production originates from nickel ores, 37% from copper ores and 15% from primary cobalt production.Chromium, · Chromium is extremely hard, and is the third hardest element behind carbon and boron.Its Mohs hardness is 8.5, which means that it can scratch samples of quartz and topaz, but can be scratched by corundum.Chromium is highly resistant to tarnishing, which makes it useful as a metal that preserves its outermost layer from corroding, unlike other metals such as copper, magnesium, and aluminium.