Eleven atoms of this element, and eleven halides, are found in the strongest known single-molecule acid.
Eleven atoms of this element, and eleven halides, are found in the strongest known single-molecule acid. This element's allotropes form 12-atom icosahedral clusters. A compound containing only this element and hydrogen unusually exhibits three different bond angles and bonds of order one-half. The formation of a pi complex allows this element to add to the less substituted carbon of a double bond. This element and (*) gallium are used to dope silicon p-type. Nearly all compounds of this element are Lewis acidic since it violates the octet rule by only having six electrons. It's the first element with a ground-state p electron. For 10 points, name this first metalloid, which has atomic number 5.
Eleven atoms of this element, and eleven halides, are found in the strongest known single-molecule acid.
boron [or B]