Gold, Silver
Quick and simple answer is that metals are solid and therefore are affected by the gravity of the Earth more than gases. Therefore gases are in the air and solids are on the surface or under the surface of the Earth.
Whether the elements found in the ground are reactive or not, partly depends on whether there is any other chemical there for them to react with.Gold, Platinum, Tin, and a few others close to the noble metals are less reactive, but even some reactive elements are found (uncommonly) in the native state.Silver is one of the more common ones so found, but Iron and Mercury are also found in the native state.
The two metals found in the outer core is Iron & Nickel
The two unreactive gases in the air are nitrogen (about 78%) and oxygen (about 21%).
Iron and Nickel
Quick and simple answer is that metals are solid and therefore are affected by the gravity of the Earth more than gases. Therefore gases are in the air and solids are on the surface or under the surface of the Earth.
Whether the elements found in the ground are reactive or not, partly depends on whether there is any other chemical there for them to react with.Gold, Platinum, Tin, and a few others close to the noble metals are less reactive, but even some reactive elements are found (uncommonly) in the native state.Silver is one of the more common ones so found, but Iron and Mercury are also found in the native state.
Highly unreactive elements that will not chemically combine include: Platinum (Pt) Gold (Au) Helium (He) Argon (Ar) Krypton (Xe) Neon (Ne) The first two are unreactive because they are at the bottom of the metals reactivity series. The rest are unreactive because they are part of the inert gases.
The two metals found in the outer core is Iron & Nickel
The two metals found in the outer core is Iron & Nickel
Elements that are extremely unreactive include: Platinum (Pt), Gold (Au), Helium (He), Argon (Ar), Xenon (Xe), Krypton (Kr). These are unreactive because: Platinum and Gold are the bottom two elements in the metals Reactivity series. The rest are inert gases which are all unreactive.
The two unreactive gases in the air are nitrogen (about 78%) and oxygen (about 21%).
Native kangaroos are only found in Australia, whilst two varieties of native tree kangaroo can also be found in New Guinea.
Silver and nickel
Iron and Nickel
iron and nickel
iron and nickel