Hydrogen, Oxygen, and krypton are substances that are combinations of nonmetals.
C, Se, Br, I, F, Cl, O, P, S, He, Ne, Ar, Kr, Xe, Rn, H
covalent molecules
covalent compounds
Ionic.
Molecules are formed when atoms lose electrons and then attach themselves to other atoms
Nonmetals become stable by gaining or sharing enough valence electrons to have a set of eight valence electrons in a shell or energy level
they combine with themselves atoms of different elements connot combine with each other wothout making a new molecule
Some are solid (eg carbon) some are gaseous (eg oxygen) and one is liquid (bromine).
The noble gases: Helium, Neon, Argon, Krypton, Xenon, Radon, all the gases in that chemical group or family. The noble gases do not usually form compounds, except under extreme conditions: high heat and pressure, and then only in the presence of a catalyst, such a platinum [Pt] or nickel [Ni].
Ionic.
Metals combine with other metals to form alloy solutions, they can form solutions with other compounds by being dissolved in them, in most cases. As well, they form ionic bonds with nonmetals.
If the electronegativity difference between two elements is less than 1.7, then covalent bond is formed between the two atoms.Also, non metals combine with other non metals to form covalent compounds.
Molecular compounds are formed when the intramolecular bonds are covalent instead of ionic. These are formed by non-metallic atoms bonding with other non-metallic atoms.
This is called a covalent bond.
ionic compounds form between metals and non-metals.
Nonmetals may react with metal to form ionic compounds (salts) or other nonmetal elements to form organic compounds.
For "only metals" the answer is alloys or intermetallic compounds, formed of course from atom of metals - the bonds are of metallic type.All other chemical compounds contain atoms of chemical elements, metals or nonmetals.
Newtons third law
Yes :)
For example halogens, carbon, oxygen, sulfur, other nonmetals.
Beryllium can form binary compounds with the majority of the nonmetals and metalloids.