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Bookmark or Share- Mass Number - Chemistry - SocraticAn atom of a sodium has 11 proton, 11 electrons, and 12 neutrons, what is its mass number? An element has 5 protons, 6 neutrons, and 5 electrons. What is the mass number?
- Isotope Notation - Chemistry - SocraticAn isotope is a variant of an element in which it has an equal number or protons but a varied number of neutrons. The notation of an isotope occurs by adding a subscipt and superscript to the left side of an element such as 238 92U (uranium isotope)
- Drawing Lewis Structures - Chemistry - SocraticLewis structures (also known as Lewis dot diagrams, electron dot diagrams,"Lewis Dot formula" Lewis dot structures, and electron dot structures) are diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule. A Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds. The Lewis structure ...
- What is an atom, element, molecule, and compound? What is an ... - SocraticAn atom is a particle of matter that characterizes a chemical element. It is the smallest part of ordinary matter. It is made from particles called protons, neutrons and electrons called the subatomic particles. An element is a substance that is made entirely of one type of atom. For example, the element sodium is made up of only sodium atoms.
- What atomic model is in use today? - SocraticGenerally speaking, the Bohr model encapsulates the modern understanding of the atom. This model is often depicted in artwork showing a central atomic nucleus and oval lines representing the orbits of the electrons. But we know that electrons don't really behave like planets orbiting a central star. We can only describe such particles by saying where they will probably be most of the time ...
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