Nonmetals because they have a lot of valence electrons.
metals
Bonds are formed on sharing electrons. Covalent bonds are formed.
An element with low electronegativity is likely to be a good conductor of electricity since it has a weaker ability to attract and hold on to electrons. This means that the element is less likely to form strong covalent bonds with other elements, making it more likely to easily share electrons and conduct electricity.
Chemical bonds are formed by the sharing or donating of electrons. The electrons that atoms use to make chemical bonds are the outermost electrons, also known as valence electrons.
This is called a covalent bond.
nonmetals
metals
Bonds are formed on sharing electrons. Covalent bonds are formed.
Covalent bonds are formed when non-metals share electrons. Ionic bonds are formed when metals and non-metals lose and gain electrons.
Covalent bonds are formed when electrons are shared between atoms.
Once formed there is NO difference from other covalant bonds. Coordinate covalent bonds only differ from other covalent bonds because a single element donates all the electrons that are to be shared.
when an element donate it's electrons and another element acceps it,in order to complete the octet electronic configuration,ionic bonds are formed
An element with low electronegativity is likely to be a good conductor of electricity since it has a weaker ability to attract and hold on to electrons. This means that the element is less likely to form strong covalent bonds with other elements, making it more likely to easily share electrons and conduct electricity.
Potassium
If an element has less than four valence electrons, it will tend to lose its valence electrons and form cations. If an element has more than four valence electrons, it will tend to gain electrons and form anions. An element that has four valence electrons will tend to form covalent bonds rather than ionic bonds.
Silicon is an element in group 14. It has four valence electrons. Silicon tends to share electrons rather than releasing or obtaining four electrons (which needs tremendous energy). Hence it forms covalent bonds.
ionic bonds!