The H 2 molecule is a good example of the first type of covalent bond, the nonpolar bond. Because both atoms in the H 2 molecule have an equal attraction (or affinity) for electrons, the bonding electrons are equally shared by the two atoms, and a nonpolar covalent bond is formed. good example of a polar covalent bond is the hydrogen-oxygen bond in the water molecule. Water molecules contain two hydrogen atoms (pictured in red) bonded to one oxygen atom (blue). Oxygen, with six valence electrons, needs two additional electrons to complete its valence shell. Each hydrogen contains one electron.
No one was ever convicted of the crimes, but one man confessed. Albert DeSalvo, already in custody for robbery and sexual assault, claimed to be the Strangler. Serving his sentence in Bridgewater State Hospital for his other crimes, DeSalvo escaped with two other inmates and triggered a massive manhunt. He was captured the next day, Feb. 25, 1967.
The Boston Massacre Do you know who is considered to be the first hero of the American Revolution? The Boston Massacre was a struggle that took place in Boston, Massachusetts, on March 5, 1770, just before the start of the American Revolution. Late that day, a crowd of colonists gathered to shout at and bother some British troops. Boston residents were resentful of the presence of the troops in their city. As tension mounted, the soldiers suddenly fired their muskets. Five colonists were shot and killed. Crispus Attucks, a black sailor and former slave, was shot and became the first person to die in the American Revolution. The violent incident became a rallying point for American patriots, led by Samuel Adams. Crispus Attucks's body was laid out at Faneuil (pronounced fan-yule) Hall in Boston.