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Non-stoichiometric compounds form a disputed marginal case. A chemical formula specifies the number of atoms of each element in a compound molecule, using the standard chemical symbols with numerical subscripts. Many chemical compounds have a unique CAS number identifier assigned by the Chemical Abstracts Service.
- Compound - Wikipedia
Compound (enclosure), a cluster of buildings having a shared...
- Chemical compound - Simple English Wikipedia, the free ...
A chemical compound is a chemical formed from atoms of...
- Compound - Wikipedia
May 6, 2024 · Chemical compound, any substance composed of identical molecules consisting of atoms of two or more chemical elements. All the matter in the universe is composed of the atoms of more than 100 different chemical elements, which are found both in pure form and combined in chemical compounds.
organic compound, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen. The few carbon-containing compounds not classified as organic include carbides, carbonates, and cyanides.
Compounds can be classified as ionic or covalent. Molecules are the simplest unit of a covalent compound, and molecules can be represented in many different ways. Atoms are the smallest units of matter that still retain the fundamental chemical properties of an element.
- Here, electrons and protons are depicted using spheres. But in reality, protons and electrons aren't...It makes sense for protons and electrons to be spheres since the shape would allow the mass of the particles to be evenly distributed from all side...
- when NaCl crystal dissolves in water , what happens to it? what happens to electrostatic attraction ...The electrostatic attraction between the Na⁺ ions and the Cl⁻ ions is still there. But the attractions between these ions and water molecules is gr...
- How does bonding (covalent vs ionic) determine the properties of a substance?Do you know what properties from these bonds make that happen ? I remenber seeing in another video that intermolecular h-bonds typically make for h...
- Is it possible for a molecule to lose all of it's electrons? Hydrogen for example?Absolutely, and hydrogen often makes a hydrogen ion (H+) which consists of only a proton
- Is there a limit to the number of electrons atoms can have, or is it specific to each element?Each shell is limited to the number of electrons per subshell: The first shell consists of an s-orbital, and so it will have max 2 electrons. The s...
- Does the bond really exist and you can observe, or its a only an illustration of a kind of force wit...The bonds exist as electromagnectic atractions that tend to hold the molecule together. They can be measured through spectroscopy with infrared, ul...
- In the "Ion and formation" part, can every elements form an ion?Elements tend to try and reach more stable electronic distribuitions, therefore they can loose or win electrons, forming ions, not all elements for...
- I still don't understand how there is no such thing as a molecule of an ionic compound. Earlier in t...Molecules are defined as two or more atoms connected by *covalent* bonds. That might seem arbitrary (especially since covalent and ionic bonds are...
- I have this question since the beginning and unfortunately nothing seems to clarify it. What is the ...Molecules consist of two or more atoms bonded together. Compounds are molecules with two or more different elements.
Chemistry is the science of chemical elements and compounds. Chemistry is a branch of science that deals with chemical elements and compounds, and how they work together and change. In other words, chemistry is the branch of science about fundamental properties of matter and chemical reactions.
