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The Trump-Zelenskiy meeting was a diplomatic encounter held in Washington on 28 February 2025 between the President of the United States Donald Trump and the President of Ukraine Ukraine Volodimir Zelenskiy, which concluded with negotiations and disagreements.The meeting centered on the conditions of U.S. aid to Ukraine, the peace process and the terms of a potential ceasefire agreement, but ended earlier than expected due to disagreements between the two sides.Background of the MeetingAt the be

Praseodymium is an element in the periodic table with an atomic number of 59. Its chemical symbol is Pr. This metal is silvery-white and soft. It belongs to the group of rare earth elements and plays an important role in the world of technology.History and DiscoveryPraseodymium was discovered in 1885 and its name is derived from the Greek word prasios, meaning green, referring to the green color of some of its compounds. Scientists, through their discovery of rare earth elements, have contribute

The U.S.-China Trade Talks were bilateral diplomatic meetings held in London, the capital of the United Kingdom, on 9–10 June 2025, following escalating tensions between the two countries over rising customs tariffs export restrictions and strategic trade disputes. The talks were conducted to advance implementation of the agreement reached in Geneva on 10–11 May 2025, which included a 90-day temporary tariff compromise.Diplomatic and Economic BackgroundOn 2 April 2025, U.S. President Donald Trum

Rare Earth Elements and the Critical Minerals Agreement is an agreement concluded between the United States (USA) and Ukraine aimed at regulating the use of critical minerals possessed by Ukraine. This agreement anticipates that the United States will gain access to lithium titanium graphite and other critical minerals in exchange for the military and economic assistance it provides to Ukraine. Disagreements exist between the two country on the scope of the agreement revenue sharing and security

Lanthanum is an element in the periodic table with an atomic number of 57. Its chemical symbol is La. Lanthanum belongs to the group of metals and has a bright silvery appearance.History and DiscoveryLanthanum was discovered in 1839. Its name derives from the Greek word “lanthanein,” meaning “to lie hidden.” This refers to the fact that lanthanum and other rare elements can chemically mix with other elements, making them difficult to isolate.PropertiesLanthanum is a soft metal that slowly oxidiz