Just about all of them! The noble gases are very rarely combined into compounds, but even some of them (most often Xe) can be combined to form a compound (the other noble gases, Ne, He, Ar, and Kr almost never react to form a compound though).
the physical properties of the elements are or changed
Compounds do not form elements. Elements form compounds.
they form elements
Ionic compounds do not form between nonmetallic elements. Nonmetallic elements form covalent bonds, and form molecular compounds. Ionic compounds are generally formed by metals and nonmetals.
Compounds are combinations of elements. They are different from molecules in the fact that Compounds cannot be a combination of the same element ( O2 ) instead compounds are combinations of different elements ( CO2 )
they don't
Compounds do not form elements. Elements form compounds.
No. Elements are not made of compounds. Elements may be combined to form compounds.
When elements and compounds combine to form new compounds the reaction is described in a chemical equation.
Elements combine to form chemical compounds.
True. Compounds do not have the same properties as the elements that form them.
they form compounds
they form elements
Uranium form chemical compounds with the majority of the other elements.
no one ahs heard about it
Elements combine together by chemical bonding to form compounds.
Compounds are formed from chemical elements.
Ionic compounds do not form between nonmetallic elements. Nonmetallic elements form covalent bonds, and form molecular compounds. Ionic compounds are generally formed by metals and nonmetals.