Plutonium was named after the planet Pluto‚ after the planet Neptune in the solar system and Neptune gave its name to Neptunium. <br><br>Plutonium is a silvery metal that turns yellow when exposed to air. It is warm to the touch due to the releasing radioactive energy from it. The atomic number of Plutonium is 94. It has an average atomic mass of 244. The symbol for plutonium is Pu. Plutonium is a lot like calcium. This is why take its place in bones‚ breaking down marrow cells and in doing so causing
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PHYSICS UNIT 2 Physics P2 for GCSE Additional Science or GCSE Physics AQA GCSE Science PHYSICS 2 Unit P2.1 Forces and their effects Appreciate that forces can cause changes to the shape or motion of an object. Not only can objects can move in a straight line at a constant speed but they can also change their speed and/ or direction (accelerate or decelerate). Be able to use/produce graphs can help us to describe the movement of an object. These may be distance-time graphs or velocity-time graphs
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Gr7 Science: Applications of the Atom Can The Demonstrated Vast Destructive Power of Nuclear Bombs Continue To Act As A Deterrent To World War III? In early August 1945 an American B-‐29 bomber‚ along with two other planes‚ dropped Little Boy onto the Japanese City of Hiroshima. Then
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Antoine Henri Becquerel was born in Paris on December 15‚ 1852. He was a member of a family of scholars and scientists over four generations‚ including his grandfather‚ Antoine-Cesar Becquerel (1788-1878)‚ his father‚ Alexandre-Edmond Becquerel (1820-91)‚ and his own son Jean Becquerel (1878-1953). After his early schooling at the Lycee Louis-le-Grand‚ Henri studied engineering at the École des Ponts et Chaussées (1874-77)‚ history at the École Polytechnique (1872-74) and his fields of science were
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• evaluate technological applications related to the use of isotopes in biology and medicine Copyright © 2012 The Ontario Educational Communications Authority. All rights reserved. ilc.org 2 Lesson 1 Biology SBI4U-C Chemistry Basics In this lesson‚ you will begin to explore the structure and function of the chemical components of living organisms. You will start by reviewing concepts of atomic structure‚ isotopes‚ and chemical bonding‚ as well as the main types of chemical
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(~2 nm) X-rays in water is less than 1 micrometer.[4] The distinction between X-rays and gamma rays has changed in recent decades. Originally‚ the electromagnetic radiation emitted by X-ray tubes had a longer wavelength than the radiation emitted by radioactive nuclei (gamma rays).[5] Older literature distinguished between X- and gamma radiation on the basis of wavelength‚ with radiation shorter than some arbitrary wavelength‚ such as 10−11 m‚ defined as gamma rays.[6] However‚ as shorter wavelength continuous
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Dalton’s theory are that his second law that all atoms of the same element are the same is false because today we have found that there are other kinds of atoms called isotopes. An isotope is an atom that has the same amount of electrons and protons‚ but it has more neutrons that increase its atomic mass. Some examples of isotopes are Carbon 12‚ carbon 13‚ carbon 14‚ Uranium (234‚ 235‚ and 238) and lithium (6‚ 7). Carbon 14 is especially useful because we know its rate of decay and can use to find
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<b>Thesis Statement</b><br>The hydrogen bomb is a nuclear weapon in which light atomic nuclei of hydrogen are joined together in an uncontrolled nuclear fusion reaction to release tremendous amounts of energy. The hydrogen bomb is about a thousand times as powerful as the atomic bomb‚ which produces a nuclear fission explosion about a million times more powerful than comparably sized bombs using conventional high explosives such as TNT.<br><br><b>The Hydrogen Bomb</b><br>The Atomic Bomb Was A Essential
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combination to another. d) When elements combine to form compounds‚ small whole numbers of atoms form molecules. However this was proved to be not entirely correct. Atoms have been split as well as created i.e. nuclear reactions. Also there are isotopes‚ meaning that not all atoms of an element are identical. Therefore theory was forced to CHANGE in regards to these observations contradicting to the theory put forward by Dalton. The distribution of charge and mass in an atom |Particle
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mass unit or amu. Atomic Number - the number of protons‚ which is unique to that element Mass Number - the sum of protons plus neutron in the nucleus of an atom. Atomic Mass - the total mass of an atom. Isotopes - different atomic forms of the same element. Radioactive Isotope - one in which the nucleus decays spontaneously‚ giving off particles and energy. Energy - defined as the capacity to cause change for instance‚ by doing work. Potential Energy - the energy that matter possesses
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