To a large extent, MAGNESIUM, element 12, is the lightest usable metal. Lithium (elmt. 3) and sodium (elmt. 11) are far too reactive to be used universally, and beryllium (elmt. 4) is very toxic and carcinogenic, thus magnesium is the lightest one that can actually be used. When powdered or shaved into small strips, magnesium is easily flammable, so in small quantities, ALUMINUM, element 13, is the lightest. But in bulk form, magnesium is surprisingly difficult to ignite, thus it is actually quite usable. Magnesium has many attractive properties. The first is the answer to the question: it's light. The second is that it is strong, especially when alloyed with aluminum or titanium (elmt. 22). It is also very abundant in the Earth's crust (9th most abundant element). Last, but definitely not least, is that magnesium is not toxic. So the answer to your question is largely magnesium, but could also be argued aluminum.
The lightest known metal in the world is lithium. It is an alkali metal with a low atomic mass and density, making it extremely light compared to other metals.
No, gold is not one of the lightest metals. It is actually quite dense and heavy compared to many other metals.
The opposite of lightest is heaviest.
aluminum is the lightest atomic #13 titanium atomic #22 silver atomic #47 gold is heaviest atomic #79
The superlative for "light" is "lightest."
The lightest 'non-metal' could be Hydrogen and Helium! Both are gases, and therefore, not a metal.
The lightest metal is lithium.
Lithium is the lightest transition metal.
lithium
The lightest known metal in the world is lithium. It is an alkali metal with a low atomic mass and density, making it extremely light compared to other metals.
The lightest alkaline earth metal is Beryllium(Be) having atomic mass 9.012 dalton. The heaviest element in this family is radium.
Cobalt.
Helium
Alluminum is probably the lightest of coinage metals used to-date.
The lightest metal element is lithium, with an atomic number of 3 and an atomic weight of around 6.94. It is also the lightest metal that is a solid at room temperature and is commonly used in batteries and other electronic devices.
Lithium is the lightest element metal with a relative atomic mass of 7 (3 protons, 4 neutrons).
Lithium is a soft white alkali metal that is the lightest metal under standard conditions. It is also the least dense solid element.