I suppose that you think to metalloids.
Metalloids, also known as semi-metals or semiconductors, are the elements that border the zig-zag line on the Periodic Table running from aluminum to ununoctium. These elements have properties that are intermediate between metals and nonmetals.
Ununoctium
Four elements have temporary names: ununtrium, ununpentium, ununseptium, ununoctium.
Oxygen and silicon are two of the principle elements. See the related link.
one
helium, neon, argon, krypton, xenon, radon, ununoctium
Ununoctium
Ununseptium, Uus Ununoctium, Uuo
Aluminium oxide has two elements: aluminium and oxygen.
Aluminium and chlorine
Aluminium is actually an element, so the only element in aluminium is aluminium.
they are 118. Hydrogen till Ununoctium (118)
Aluminium and chlorine
Aluminium hydroxide
Aluminium and chlorine.
For elements with no stable isotopes (like Ununoctium), the mass number of the isotope with the longest half-life is used. That's 294.
Four elements have temporary names: ununtrium, ununpentium, ununseptium, ununoctium.
Aluminium and phosphorus