Derivation of bond length/bond order and bond energy/bond order formulae Bond length/bond order formula for NâO bonds. Development of this formula required a selection of suitable bond lengths for NâO single, double and triple bonds.
Dan Blocker, co-star of the television series Bonanza, died May 13, 1972 of a pulmonary embolism.
âHouse of Cardsâ Actress Elizabeth Norment Dies at 61. Actress Elizabeth Norment, who most recently played Kevin Spacey's executive secretary on House of Cards, has died, her agent Dianne Busch told NBC News on Tuesday. She was 61. Norment died Oct. 13 at Memorial Sloan Kettering Cancer Center in New York City, but no other details about her death are available at this time. As Nancy Kaufberger on Netflix's House of Cards, Norment kept Spacey's ambitious politico Frank Underwood straight.