https://padlet.com/304503/9i9886qtdn5o period 1 11-28-17 en-us 2017-11-28 16:25:19 UTC 2024-06-09 10:54:12 UTC hello@padlet.com 304503 https://padlet.com/304503/9i9886qtdn5o/wish/210996736 an element or substance that is not a metal.]]> 2017-11-28 16:27:31 UTC https://padlet.com/304503/9i9886qtdn5o/wish/210996736 304503 https://padlet.com/304503/9i9886qtdn5o/wish/210999483 a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity (e.g., iron, gold, silver, copper, and aluminum, and alloys such as brass and steel)]]> 2017-11-28 16:30:46 UTC https://padlet.com/304503/9i9886qtdn5o/wish/210999483 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211000305 a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.]]> 2017-11-28 16:31:34 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211000305 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211001725 A compound is a substance formed when two or more chemical elements are chemically bonded together. ... Water: two hydrogen atoms bonded to an oxygen atom. The type of bonds holding elements together in acompound can vary: two common types are covalent bonds and ionic bonds.]]> 2017-11-28 16:33:16 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211001725 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211002975 each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter. Each element is distinguished by its atomic number, i.e., the number of protons in the nuclei of its atoms.]]> 2017-11-28 16:34:59 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211002975 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211004319 a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.]]> 2017-11-28 16:36:49 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211004319 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211005730 In chemistry and atomic physics, the electron affinity of an atom or molecule is defined as the amount of energy released or spent when an electron is added to a neutral atom or molecule in the gaseous state to form a negative ion.]]> 2017-11-28 16:38:41 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211005730 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211006871 each of the actual or potential patterns of electron density that may be formed in an atom or molecule by one or more electrons, and that can be represented as a wave function.]]> 2017-11-28 16:40:21 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211006871 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211008085 The energy spectrum of a system with such discrete energy levels is said to be quantized. In chemistry and atomic physics, an electron shell, or a principal energy level, may be thought of as an orbit followed by electrons around an atom's nucleus.]]> 2017-11-28 16:41:55 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211008085 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211009235 In chemistry and physics, atomic theory is a scientific theory of the nature of matter, which states that matter is composed of discrete units called atoms. ... The word atom comes from the Ancient Greek adjective atomos, meaning "indivisible".]]> 2017-11-28 16:43:31 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211009235 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211010378 Electron Cloud Model is an informal term in physics. It is used to describe where electrons are when they go around the nucleus of an atom. The electron cloud model is different from the older Bohr atomic model by Niels Bohr. Bohr talked about electrons orbiting the nucleus.]]> 2017-11-28 16:45:01 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211010378 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211011473 a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.]]> 2017-11-28 16:46:18 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211011473 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211013092 a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.]]> 2017-11-28 16:48:07 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211013092 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211015146 a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.]]> 2017-11-28 16:50:44 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211015146 304503 https://padlet.com/304503/9i9886qtdn5o/wish/211015463 the basic unit of a chemical element]]> 2017-11-28 16:51:10 UTC https://padlet.com/304503/9i9886qtdn5o/wish/211015463