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Bond, Sir Robert

(Encyclopedia)Bond, Sir Robert, 1857–1927, Newfoundland political leader. He was educated in England and later entered Newfoundland politics. In 1890, he negotiated a reciprocity agreement between Newfoundland an...

Bond, William Cranch

(Encyclopedia)Bond, William Cranch, 1789–1859, American astronomer, b. Portland, Maine. He early aided his father in the trades of silversmith and clockmaker in Boston. He soon became an expert in the making of c...

Head, Sir Francis Bond

(Encyclopedia)Head, Sir Francis Bond, 1793–1875, British administrator in Canada. A soldier (1811–25) and unsuccessful mining adventurer in South America, he had had little experience to prepare him for the pos...

Bond, J. Max, Jr.

(Encyclopedia)Bond, J. Max, Jr., 1935-2009, African-American architect, b. Lexington, Ky., Harvard Univ. (BA, 1955; MA, 1958). Bond’s father, J. Max, Sr., was ...

free radical

(Encyclopedia)free radical, in chemistry, a molecule or atom that contains an unpaired electron but is neither positively nor negatively charged. Free radicals are usually highly reactive and unstable. They are pro...

alkene

(Encyclopedia)CE5 Alkenes alkene ălˈkēn [key], any of a group of aliphatic hydrocarbons whose molecules contain one or more carbon-carbon double bonds (see chemical bond). Alkenes with only one double bond h...

alkyne

(Encyclopedia)CE5 Alkynes alkyne ălˈkīn [key], any of a group of aliphatic hydrocarbons whose molecules contain one or more carbon-carbon triple bonds (see chemical bond). Alkynes with one triple bond have t...

Amis, Sir Kingsley

(Encyclopedia)Amis, Sir Kingsley āˈmĭs [key], 1922–95, English novelist. He attended St. John's College, Oxford (B.A., 1949) and for some 20 years taught at Oxford, Swansea, and Cambridge and in the United Sta...

electronegativity

(Encyclopedia)electronegativity ĭlĕkˌtrōnĕgətĭvˈətē [key], in chemistry, tendency for an atom to attract a pair of electrons that it shares with another atom (see chemical bond). For example, the molecule...

Ryder, Donald P.

(Encyclopedia)Ryder, Donald P., , 1926-2021, African-American architect, b. Springfield, Oh., Univ. of Illinois (BA, 1951). Ryder was raised in Dayton, Ohio. He serve...