"Always" is a very strong word. If you're in grade school, any of the noble gases, but if you're in high school or above, you should know that they aren't truly chemically inert and under certain conditions even helium can be induced to form "compounds" of a sort, such as the HHe+ ion.
The majority of elements (excepting O, N, H, F, Cl) are monoatomic.
neon, a noble gas
The noble gases always exist in monatomic form: Helium, Neon, Argon, Krypton, Xenon, and Radon.
No. Argon has completely filled orbitals. It is stable and does not form compounds. Argon exists as monoatomic gas.
Scientifically white powder gold is Orbitally Rearranged Monoatomic Elements such as gold in a monoatomic form. Anciently it's believed to present powers to those who drink it when combined with water.
A. iodine B. silver C. bromine D. manganese
neon, a noble gas
The noble gases always exist in monatomic form: Helium, Neon, Argon, Krypton, Xenon, and Radon.
Bromine is the only element that is liquid and forms diatomic molecules Br2. Mercury is also an element and is liquid but is monoatomic.
No. Argon has completely filled orbitals. It is stable and does not form compounds. Argon exists as monoatomic gas.
gold
No, neon exists as a monatomic gas at standard temperature and pressure. It does not readily form diatomic molecules or other larger clusters like some other elements.
Helium itself is an element and it forms no chemical compound whatsoever, therefore, it is a noble gas. The atom of Helium is so inert that it cannot even form a molecule with another atom of Helium, hence is monoatomic.
No, It is silver metal, an element , single Ag is an atom.
The gametic life cycle exists in which the haploid form is always unicellular as in humans.
The gametic life cycle exists in which the haploid form is always unicellular as in humans.
Allotrope
Oxygen can either be diatomic, monoatomic and triatomic. The question is which one is the most stable. The most stable is obviously diatomic oxygen O2. Next is triatomic (ozone) O3 and the least stable (very unstable) is monoatomic. Monoatomic oxygen is very shortly living species combining easily (due to very high electronegativity) with large number of elements including another oxygen atom. If we are required to say which is the most common form of oxygen then we need to say it is diatomic O2 existing at room temp and atmospheric pressure as a gas.