Ar
Some element that is unreactive, like any of the rare gases helium, neon, argon etc.
Mg (magnesium)
They are actually elements so that is pure substances. Mixtures are more than one type of element that are in the same space but not touching. Compounds are like mixtures but they are touching.
Hydrogen is the most common element in the universe and it is in a class of its own as it is the simplest and lightest element, consisting of only one proton and one electron. It is found in stars, gas giants, and interstellar space.
Argon is an element that would have similar properties to neon because they both belong to the noble gas group in the periodic table. Like neon, argon is a colorless, odorless, and non-reactive gas at room temperature. Both elements have full outer electron shells, making them stable and unreactive.
There are six noble gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn) and all have similar properties.
Aluminum and helium cannot be combined to create a lightweight metal. Aluminum is a metal on its own with specific properties, while helium is a gas that does not form chemical bonds with metals like aluminum.
Helium is a gas . . . it has neither strength nor brittleness.
Well it is partly true. Helium has physical properties like density, boiling point, conductivity etc. But it has no chemical property.
Helium is a colorless, odorless, and tasteless gas that is the second lightest and second most abundant element in the universe. It is known for its low density and non-reactive properties, making it commonly used in applications like filling balloons or as a coolant in cryogenics.
Elements in the same group or column on the periodic table have similar chemical properties. Helium is in group 18 or the Nobel gases. Elements with similar chemical properties would be the rest of the elements below Helium Neon, Argon, Krypton, Xenon, and Radon
Helium is classified as a light element because it has a low atomic mass compared to other elements like oxygen or iron. It is lighter than air, which is why helium-filled balloons float.
Some element that is unreactive, like any of the rare gases helium, neon, argon etc.
Helium does not have a luster because it is a noble gas.
Only in a nuclear collider like CERN. It is an element.
Neon and argon, the two elements immediately below helium in column 18 of a wide form periodic table.
The second lightest and second most abundant element found in stars, making up about 25% of the Sun, is helium. Helium is formed through nuclear fusion in stars, with hydrogen being the most abundant element in stars like the Sun.