Yes all metals including Lithium, are denser than air.
No. The alkali metals in particular have very low densities; the only elements with a lower density than lithium at room temperature are the ones that are gases. Carbon, sulfur, bromine and iodine are all denser than all the alkali metals and several of the alkaline earth metals. Iodine is denser than aluminium and titanium.
Yes, cold air does have a higher density than warm air. For example, if you turn on the fireplace, all of the warm air rises to the ceiling. On the floor, the air is cooler.
No. For example, a kilogram of water is lighter than a ton of marzipan. If you mean is water denser than everything than the answer is still no. Many substances including nearly all metals and minerals are denser than water.
No, not all non-metals float. The ability to float depends on the density of the material compared to the density of the fluid it is in. For example, while gases like oxygen and nitrogen are non-metals that can float in air, solid non-metals like sulfur or phosphorus are denser than water and will sink. Thus, whether a non-metal floats or sinks varies based on its physical properties and the medium it is in.
The question is deeply flawed. Many metals are denser than many liquids, but many liquids are denser than some metals (and then, of course, there's mercury, which is both a metal and a liquid at room temperature). If all you know about two substances is that one is a liquid and one is a metal and you're forced to bet your life on which is denser ... your odds are probably SLIGHTLY better betting on the metal.
All moons are denser that earths atmosphere
"Dense" is a property that can describe both metals and non-metals. Metals in general tend to be denser than non-metals due to their atomic structure, but there are exceptions. It's important to consider the specific element in question when determining its density.
The composition of Earth's atmosphere is mostly nitrogen, carbon dioxide, and oxygen. All of these elements are denser than helium, and therefore it tends to rise.
Yes because it has milk, sugar and other ingredients which all are denser than water.
No. Like all metals (with the exceptions of lithium and sodium) copper is denser than water.
Yes, boron is heavier than air. The atomic mass of boron is about 10.81 g/mol, while the average molar mass of air (mostly nitrogen and oxygen) is about 28.97 g/mol. Therefore, boron is denser and heavier than air.
Neon, ammonia, methane, hydrogen, helium and water vapour are the best lifting gases and are all less denser than air.