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.
Log in akhileshmulgund10 9 years agoPosted 9 years ago. Direct link to akhileshmulgund10's post “Here, electrons and proto...” Here, electrons and protons are depicted using spheres. But in reality, protons and electrons aren't really spheres, are they? If not, what exactly do they look like? • (169 votes) EnchantressQueen 5 years agoPosted 5 years ago. Direct link to EnchantressQueen's post “It makes sense for proton...” 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 sides. If they were cubes, the corners would be sticking farther away from the center. However, it is much more complicated than that. Sometimes the protons and electrons act like waves. They are not really spheres, but at the same time, they are. Pretend you are holding a ball above a puddle of water. Now, drop the ball. When the ball hits the water, it disappears. The ripples travel outward from the point of impact. Then, a ripple hits a stick in the water. The ripples disappear, and the ball bounces back up from the stick. Hopefully this answer is simple enough yet understandable at the time. If you are still interested in this topic, I suggest you look further into quantum physics. Remember that I might be wrong. Anything that we think are facts may be later disproven. That is the beauty of science. :) Anyone have any other thoughts on this? (83 votes) hossein noroozian 8 years agoPosted 8 years ago. Direct link to hossein noroozian's post “when NaCl crystal dissolv...” when NaCl crystal dissolves in water , what happens to it? what happens to electrostatic attraction between Na and Cl atoms? • (71 votes) Ernest Zinck 8 years agoPosted 8 years ago. Direct link to Ernest Zinck's post “The electrostatic attract...” The electrostatic attraction between the Na⁺ ions and the Cl⁻ ions is still there. Ellie Cook 9 years agoPosted 9 years ago. Direct link to Ellie Cook's post “How does bonding (covalen...” How does bonding (covalent vs ionic) determine the properties of a substance? • (39 votes) johnny 8 years agoPosted 8 years ago. Direct link to johnny's post “Do you know what properti...” Do you know what properties from these bonds make that happen ? I remenber seeing in another video that intermolecular h-bonds typically make for high boiling points, like in water, because it takes alot of energy to break them apart. I would think covalent bonds would be even stronger and therefore harder to change phase. But maybe what matters for boiling is different than for melting, do you know how these bonds translate into the properties you cited ? (12 votes) 'phiakat 8 years agoPosted 8 years ago. Direct link to 'phiakat's post “Is it possible for a mole...” Is it possible for a molecule to lose all of it's electrons? Hydrogen for example? • (29 votes) Matt B 8 years agoPosted 8 years ago. Direct link to Matt B's post “Absolutely, and hydrogen ...” Absolutely, and hydrogen often makes a hydrogen ion (H+) which consists of only a proton (52 votes) Scott Burgandy Stephen 8 years agoPosted 8 years ago. Direct link to Scott Burgandy Stephen's post “Is there a limit to the n...” Is there a limit to the number of electrons atoms can have, or is it specific to each element? • Matt B 8 years agoPosted 8 years ago. Direct link to Matt B's post “Each shell is limited to ...” Each shell is limited to the number of electrons per subshell: (30 votes) Atomic 8 months agoPosted 8 months ago. Direct link to Atomic's post “bro Richard carries the c...” bro Richard carries the chat forever • (32 votes) Christine Yan 9 years agoPosted 9 years ago. Direct link to Christine Yan's post “Does the bond really exis...” Does the bond really exist and you can observe, or its a only an illustration of a kind of force within compound? • (18 votes) Ligia C.Albuquerque 8 years agoPosted 8 years ago. Direct link to Ligia C.Albuquerque's post “The bonds exist as electr...” The bonds exist as electromagnectic atractions that tend to hold the molecule together. They can be measured through spectroscopy with infrared, ultraviolet, and other wavelengths of energy . (26 votes) Megane Thomas 5 years agoPosted 5 years ago. Direct link to Megane Thomas's post “I still don't understand ...” I still don't understand how there is no such thing as a molecule of an ionic compound. Earlier in the chemistry playlist, they said that a molecule consists of two or more atoms bonded together, so wouldn't that make ionically bonded sodium and chlorine a molecule cause it consists of two atoms? And how much of it do you need in order for it to be considered a formula unit? • (9 votes) tyersome 5 years agoPosted 5 years ago. Direct link to tyersome's post “Molecules are defined as ...” Molecules are defined as two or more atoms connected by covalent bonds. That might seem arbitrary (especially since covalent and ionic bonds are ends of a continuum rather than separate categories), but ionic bonding is fundamentally different. Ionic bonding is not directional — for example, each sodium cation in a crystal of table salt is equally attracted to all the neighboring chloride anions. In contrast, covalent bonding is directional — a covalent bond is between two specific atoms. This means that a salt crystal has a network of interactions, so there are no specific pairs of ions — this means you can't single out a "molecule" and therefore we talk about the more abstract "formula units" instead. Formula units have no physical reality, they are just a way of talking about the stoichiometry (ratio of elements) within a compound. Does that help? (34 votes) So Yeon Kim 9 years agoPosted 9 years ago. Direct link to So Yeon Kim's post “In the "Ion and formation...” In the "Ion and formation" part, can every elements form an ion? • (14 votes) Eliane Leal 9 years agoPosted 9 years ago. Direct link to Eliane Leal's post “Elements tend to try and ...” Elements tend to try and reach more stable electronic distribuitions, therefore they can loose or win electrons, forming ions, not all elements form ions spontaneously, like noble gases, some form ions very very easily while others dont (they require high amounts of energy to do so) (20 votes) soumilighosh246 6 years agoPosted 6 years ago. Direct link to soumilighosh246's post “I have this question sinc...” I have this question since the beginning and unfortunately nothing seems to clarify it. • (5 votes) Davin V Jones 6 years agoPosted 6 years ago. Direct link to Davin V Jones's post “Molecules consist of two ...” Molecules consist of two or more atoms bonded together. Compounds are molecules with two or more different elements. (11 votes)Want to join the conversation?
But the attractions between these ions and water molecules is greater than their attractions for each other.
The ions become surrounded by a shell of water molecules and move away from the crystal and into the water.
The first shell consists of an s-orbital, and so it will have max 2 electrons.
The second shell has an s and p orbital so it will have max 2+6=8 electrons.
The third shell has s p and d orbitals so it will have max 2+6+10=18 electrons.
#chem-goat
What is the difference between a molecule and a compound?
