The Great Discovery of Marie CurieRadium is the 88th element of the periodic table, its family group is the alkaline earth metal. Radium is a chemical element with the symbol Ra. Pure metallic radium is bright white when freshly prepared, but darkens when exposed to air. Radium has been used to produce neutron sources, luminous paints and medical radioisotopes. Marie Curie is known to be the mother of science, thanks to several of Marie's discoveries, Madame Curie made up most of the earth's metals on the periodic table. Marie discovered Radium and other key elements, which help us in our daily lives, particularly for taking x-rays. Marie was also the first person to receive two Nobel Prizes in physics and chemistry. Maria Sklodowska was born in Warsaw, Poland on November 7, 1867. Maria was only eight years old when she discovered that her older sister had caught typhus and died the next day. year. The death of his sister Zofia had a huge impact on his life: three years later, his mother lost a battle with tuberculosis at the age of forty-two. Growing up, Maria never had any difficulties...