Emission spectrum of a ceramic metal halide lamp. The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to electrons making a transition from a high energy state to a lower energy state. The photon energy of the emitted photons is equal to the energy difference When an electron moves from a higher-energy orbit to a more stable one, energy is emitted in the form of a photon. To move an electron from a stable orbit to a more excited one, a photon of energy must be absorbed. Using the Bohr model, we can calculate the energy of an electron and the radius of its orbit in any one-electron system.
Matt B. 8 years ago. Probably an element in the bottom left corner of the periodic table, like Francium. The first ionization energy is the energy required for an element to lose one of its electrons. Elements found in the first group (Li, Na, K, ) all have one electron in their outer shell, so they would quite favorably lose that electron.

The Centers for Disease Control defines a nuclear weapon as a "device that uses a nuclear reaction to create an explosion." When exploded it releases four types of energy, "a blast wave, intense

Nuclear energy is a form of energy released from the nucleus, the core of atoms, made up of protons and neutrons. This source of energy can be produced in two ways: fission – when nuclei of atoms split into several parts – or fusion – when nuclei fuse together.

They work due to a chain reaction called induced nuclear fission, whereby a sample of a heavy element (Uranium-235 or Plutonium-239) is struck by neutrons from a neutron generator. The nuclei of the fuel atoms split, releasing massive amounts of energy and more neutrons, which perpetuate the reaction.

v. t. e. Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle ( helium nucleus) and thereby transforms or 'decays' into a different atomic nucleus, with a mass number that is reduced by four and an atomic number that is reduced by two. An alpha particle is identical to the nucleus of a helium

Chemical reactions. Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products. An arrow is drawn between the reactants and products to indicate the direction of the Explanation: Atomic size decreases across a Period from left to right as we face the Table, but INCREASES down a Group, a column of the Periodic Table. This is one of the most fundamental and useful ideas you can learn as you are introduced to chemistry. Atomic size is influenced by (i) nuclear charge, Z, and by (ii) shielding by other Radioactive decay, the set of various processes by which unstable atomic nuclei (nuclides) emit subatomic particles. Atomic energy is the source of nuclear power, which uses sustained nuclear fission to generate heat and electricity. It is also the source of the explosive force of an atomic bomb . The Atomic Science of Nuclear Weapons. All matter is composed of atoms, which host different combinations of three particles—protons, electrons, and neutrons. Nuclear weapons work by capitalizing on the interactions of protons and neutrons to create an explosive chain reaction. At the center of every atom is a core called the nucleus, which
Manhattan Project. The Manhattan Project was the code name for the American-led effort to develop a functional atomic weapon during World War II. The controversial creation and eventual use of the
The modern version of atomic structure begins with Ernest Rutherford ’s recognition that an atom consists of a single, central, massive, positively charged nucleus surrounded by electrons. The number of protons in the nucleus is the atomic number, Z, of the element. (For hydrogen Z = 1, and for carbon Z = 6.) A proton is positively charged

Figure 2.2.1 2.2. 1: The Structure of the Atom. Atoms have protons and neutrons in the center, making the nucleus, while the electrons orbit the nucleus. The modern atomic theory states that atoms of one element are the same, while atoms of different elements are different.

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    • how does atomic energy work