Phosphorus oxidises in air to give the a greenish glow, historically called phophorescence but is now termed a chemiluminescent reaction.
Metals in the reactivity series from aluminium to copper react with oxygen in the air to form the metal oxide. Aluminium and Zinc reacts very quickly, Iron reacts slowly at room temperature. Tin, Lead and Copper reacts with Oxygen in air when heated. Silver, Gold and Platinum do not react with Oxygen in air
HBr (hydrogen bromide) is a gas at room temperature, and is not stable in its gaseous form due to its reactivity. It reacts readily with moisture in the air to form hydrobromic acid.
When oxygen in the air reacts with metal, oxidation occurs, leading to the formation of metal oxides on the metal's surface. This process results in the deterioration of the metal over time, forming rust or other types of corrosion depending on the metal.
Oxygen
Carbon dioxide
Metals in the reactivity series from aluminium to copper react with oxygen in the air to form the metal oxide. Aluminium and Zinc reacts very quickly, Iron reacts slowly at room temperature. Tin, Lead and Copper reacts with Oxygen in air when heated. Silver, Gold and Platinum do not react with Oxygen in air
Diamond is inert at room temperature and even it does not react with air but at 1405Fahrenheit it reacts with air so that it can be oxidized.
Francium is a highly radioactive alkali metal that is a solid at room temperature. Due to its extreme rarity and radioactivity, it is difficult to observe in its solid state. Francium readily reacts with air and moisture, leading to its rapid decay.
Gallium is a soft metal with a low melting point of 29.76°C. It exhibits properties of both metals and non-metals. Gallium is not reactive with water and air at room temperature, but it reacts with acids and alkalis.
Lithium is a shiny silver metal at room temperature. It is very soft and will oxidize quickly if exposed to air.
It depends which metal you are referring to.
Calcium is a solid, soft dull grey metal at room temperature :)
copper
HBr (hydrogen bromide) is a gas at room temperature, and is not stable in its gaseous form due to its reactivity. It reacts readily with moisture in the air to form hydrobromic acid.
It is a solid metal. Incredibly reactive in water.
Sodium is a soft, silvery-white metal at room temperature. It is highly reactive with air and moisture, quickly forming a dull oxide coating on its surface.
Considering the question lithium sulphide is solid at room temperature. It's melting point is nearly 900-930 centigrade. But at room temperature it easily catches fire when exposed to air since it reacts violently with oxidising agents. It should be stored at an inert atmosphere.