Compare the type of bonds in metalloids to metal (delocalized) and nonmetal (localized).

1) The type of bond in metalloids to metal is metallic bond.

Metallic bond is a type of chemical bond.  

Metallic bond is formed between electrons and positively charged metal ions.

Metallic radius is defined as one-half of the distance between the two adjacent metal ions.  

Metallic bond increace electrical and thermal conductivity.  

Metals conduct heat, because when free moving electrons gain energy (heat) they vibrate more quickly and can move around.  

2) The type of bond in nonmetal is covalent bond.

Nonmetals have low electrical and thermal conductivity.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

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