Metals questions This is a list of recently added questions about metals. Play metals quiz and see all the questions. In welding terminology - what does acronym MIG stand for?Metal Inert Gas . MIG – ‘MIG’ stands for ‘Metal Inert Gas’ or ‘MAG’ (‘Metal Active Gas’ welding). This is one of the most common welding techniques – and one of the easiest to learn. MIG uses a consumable electrode and an argon-carbon dioxide shielding gas to create strong welds on both thin and thick sheets of metal. Created by: Tschuka very hard 36% Metal Inactive Gas Metal Inactive Gas 50Metal Inert Gas Metal Inert Gas 63Metal Inter Gas Metal Inter Gas 38Metal Inertly GasMetal Inertly Gas24chemistry riddles » Which metal has the highest reflectivity and thermal conductivity?Silver is a chemical element with symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Created by: Tschuka very hard 28% GoldGold644SilverSilver744TinTin431CopperCopper795science riddles » What is the rarest metal in the Earth's crust?Rhenium is a chemical element with symbol Re It is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table. With an estimated average concentration of 1 part per billion (ppb), rhenium is one of the rarest elements in the Earth's crust. Discovered in 1908, rhenium was the second-last stable element to be discovered. It was named after the river Rhine in Europe. Created by: Tschuka hard 42% GoldGold306RheniumRhenium1611PlatinumPlatinum1054ZirconiumZirconium811Earth riddles » Which of these elements is not a micronutrient?Tin. copper, zinc and manganese are micronutrients. They are necessary for the proper functioning of our body. However, Tl (tal) is very toxic.Created by: Tschuka average 61% MnMn70ZnZn114TinTin529CuCu144food riddles » Brass is an alloy made of ...Zinc and copper. Brass is a metallic alloy that is made of copper and zinc. The proportions of zinc and copper can vary to create different types of brass alloys with varying mechanical and electrical properties.Created by: Tschuka average 60% nickel and coppernickel and copper169zinc and copperzinc and copper1342bronze and copperbronze and copper643brass is a chemical elementbrass is a chemical element73technical riddles » Which of the following metals is the most reactive?Cesium. Caesium or cesium is a chemical element with symbol Cs and atomic number 55. It is a soft, silvery-gold alkali metal . Is most reactive of all metals. Created by: Tschuka very hard 39% sodiumsodium111potassiumpotassium64rubidiumrubidium69cesiumcesium156chemical elements riddles » Which of these elements is not a precious metal?Lanthanum is a chemical element with symbol La . It is a soft, ductile, silvery-white metal that tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. Lanthanum does not belong to precious metals. Created by: Tschuka hard 59% PlatinumPlatinum54RutheniumRuthenium354SilverSilver69LanthanumLanthanum712chemistry riddles » What is steel made from?From iron and coal. Steel is an alloy made from iron and coal. It gets harder the more coal you use to make it.Created by: NayaNoeasy 76% From iron and coalFrom iron and coal7878from iron and tytanfrom iron and tytan945from iron and quartzfrom iron and quartz641from iron and magnesiumfrom iron and magnesium893construction riddles » How much did the biggest gold nugget weigh?235 kg. Record big nugget was found in Australia in 1872. It weighed 7555.42 oz that is 235 kg and measured 1.42 m.Created by: smyruhard 43% 2,35 kg2,35 kg86523,5 kg23,5 kg1719235 kg235 kg23872350 kg2350 kg475gold riddles » If a gun bullet was made of gold, what properties would it have?Armor-piercing. The density of gold is 19,320 kg/m3, which is higher than of uranium (18,800) and much higher than of lead (11,340). The armor-piercing ammo is made of uranium for its high density - golden bullets would work for this purpose even better.Created by: Cleohard 45% it would be uselessit would be useless4188explosiveexplosive699armor-piercingarmor-piercing6949similar in its properties to a lead bulletsimilar in its properties to a lead bullet3456guns riddles » Play chemistry quiz and see all the questions.