What is Actinium? Actinium is a radioactive chemical element that is part of the IIIB group of periodic table. It has the symbol Ac and atomic number 89. It is about 150 heavier than Radium. Actinium is first discovered in 1899 by Andre-Louis Debierne, a French chemist. Actinium was found by Debierne in the residue […]
Tag: elements
Hydrogen, Helium, Lithium, Berillium,.. Well, memorizing the long list of elements in the periodic table might be common to you, especially science students. But how well do you actually understand what you’re memorizing all this time? Do you know what is the usage, characteristic of the elements that you learned in high school? Sometimes you’re […]
Water is a very important and an essential solution in this world. Water covers 75% of the earth surface which is part of the sea, rivers, and lakes. If there is no water in this world, there will be no life. In addition, 2/3 of the human body is also a water. Besides being used […]
Most of us know about the tragedy that happened in 1945, when Hiroshima and Nagasaki, a city in Japan which got blown up by a nuclear weapon. This weapon killed a huge amount of lives, it took approximately 129.000 peoples, which most of them are civilians. Not few of them also died because of the […]
Chromium is a transition metal chemical element with symbol Cr and atomic number 24. It was first discovered by French chemist Louis Nicolas Vauquelin in 1797. The name chromium is derived from Greek word ‘chroma’, which means color in English. Chromium is a grey, odorless, malleable and tasteless metal and it has a very strong […]
Carbon, also known as C on the periodic table, is a chemical element with atomic number 6. Carbon is a nonmetallic element with electron configuration [He] 2s2 2p2. This element is the fourth most abundant element in the whole universe. The name carbon is derived from carbo, a Latin word. It was first discovered and used […]
Have you ever look at the night sky and find yourself immersed in the beauty of fireworks? It always looks so graceful, with the beautiful color explosion, and those majestic sounds that becoming more and more familiar every time we are going through a new year or any special occasion. We often are willing to […]