https://padlet.com/3049361/fyg3io71vgt5 Made with fortitude en-us 2017-11-29 02:37:07 UTC 2017-11-29 04:21:45 UTC hello@padlet.com 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211235781 Atom is a free and open-source text and source code editor for macOS, Linux, and Microsoft Windows with support for plug-ins written in Node.js, and embedded Git Control, developed by GitHub.]]> 2017-11-29 02:38:02 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211235781 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211235803 The electron is a subatomic particle, symbol e− or β− , with a negative elementary electric charge.]]> 2017-11-29 02:38:12 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211235803 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236344 A proton is a subatomic particle, symbol p or p+ , with a positive electric charge of +1e elementary charge and mass slightly less than that of a neutron.]]> 2017-11-29 02:43:02 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236344 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236359 The neutron is a subatomic particle, symbol n or n0 , with no net electric charge and a mass slightly larger than that of a proton. Protons and neutrons constitute the nuclei of atoms.]]> 2017-11-29 02:43:13 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236359 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236424 In quantum mechanics, an atomic orbital is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom. ]]> 2017-11-29 02:43:57 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236424 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236450 An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are very small; typical sizes are around 100 picometers. ]]> 2017-11-29 02:44:07 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236450 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236488 A quantum mechanical system or particle that is bound—that is, confined spatially—can only take on certain discrete values of energy. This contrasts with classical particles, which can have any energy. These discrete values are called energy levels]]> 2017-11-29 02:44:26 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236488 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236508 In quantum mechanics, an atomic orbital is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom]]> 2017-11-29 02:44:34 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236508 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236534 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.]]> 2017-11-29 02:44:45 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236534 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236584 The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number, electron configurations, and recurring chemical properties]]> 2017-11-29 02:45:10 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236584 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236603 A chemical element is a species of atoms having the same number of protons in their atomic nuclei. 118 elements are identified, of which the first 94 occur naturally on Earth with the remaining 24 being synthetic elements.]]> 2017-11-29 02:45:21 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236603 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236624 a thing that is composed of two or more separate elements; a mixture.]]> 2017-11-29 02:45:32 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236624 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236657 A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. Molecules are distinguished from ions by their lack of electrical charge.]]> 2017-11-29 02:45:50 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236657 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236676 A metal is a material that is typically hard, opaque, shiny, and has good electrical and thermal conductivity.

]]> 2017-11-29 02:46:02 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236676 3049361 https://padlet.com/3049361/fyg3io71vgt5/wish/211236684 In chemistry, a nonmetal is a chemical element that mostly lacks metallic attributes. Physically, nonmetals tend to be highly volatile, have low elasticity, and are good insulators of heat and electricity; ]]> 2017-11-29 02:46:08 UTC https://padlet.com/3049361/fyg3io71vgt5/wish/211236684