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  2. Washington, D.C. - Wikipedia

    en.wikipedia.org/wiki/Washington,_D.C.

    Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and federal district of the United States.The city is on the Potomac River, across from Virginia, and shares land borders with Maryland to its north and east.

  3. Isotopes of titanium - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_titanium

    Naturally occurring titanium (22 Ti) is composed of five stable isotopes; 46 Ti, 47 Ti, 48 Ti, 49 Ti and 50 Ti with 48 Ti being the most abundant (73.8% natural abundance).Twenty-one radioisotopes have been characterized, with the most stable being 44 Ti with a half-life of 60 years, 45 Ti with a half-life of 184.8 minutes, 51 Ti with a half-life of 5.76 minutes, and 52 Ti with a half-life of ...

  4. United States presidential election - Wikipedia

    en.wikipedia.org/wiki/United_States_presidential...

    In 2012 for example, the Democratic and Republican party conventions each used two different formulas to allocate delegates. The Democrats-based theirs on two main factors: the proportion of votes each state gave to the Democratic candidate in the previous three presidential elections, and the number of electoral votes each state had in the ...