formula unit
ION haha apex is pretty boring huh
When a sodium atom loses a valence electron, it becomes a positively charged ion called a sodium ion (Na+). When a sodium atom gains a valence electron, it becomes a negatively charged ion called a sodium ion (Na-).
While a sodium ion and neon atom both have 10 electrons they are of different elements as a neon atom has 10 protons while sodium has 11. As a result the neon atom is neutral while the sodium ion carries a positive charge. So neon can exist on its own as a gas while sodium ion needs a negative ion to balance its charge and form an ionic solid.
Sodium forms the Na+ ion.
A sodium ion differs from a sodium atom in that the sodium ion has a missing electron electron. It has a positive charge, as opposed to the atom, which is neutral.
If you think to formula unit this is Na2S.
The particle of dissolved sodium is a positively charged sodium ion. Sodium atoms lose one electron to become stable, forming sodium ions when dissolved in water.
An ion is a charged particle. A sodium atom is neutral and has one electron in the valence shell. When it loses its valence elctron, it is no longer neutral and becomes Na+ , i.e a charged particle, hence it is an ion.
A diagram showing the sodium atom as larger than the positive sodium ion would be representative since the positive ion has lost an electron, leading to a decrease in size due to the loss of electron-electron repulsion.
Sodium sulphate is an ionic compound composed of sodium ions (Na+) and sulphate ions (SO4^2-). It is not a single particle but a crystalline solid made up of a repeating pattern of these ions.
The two elements that make the compound "salt", are sodium (metal) and chloride (non-metal). These two elements are bonded together to create sodium chloride as we call it "salt". Sodium particle-> O + O <-Chloride particle = Sodium chloride (salt).
A representative particle is thought of as the smallest unit into which a substance may be divided without changing its composition. Some examples might be helpful. For a given chemical element, it's an atom. An atom of carbon is the smallest unit of carbon one can find.For covalently bonded compounds & diatomic molecules, the representative particle is a molecule. For example, an atom of hydrogen and an atom chlorine covalently bond to make a molecule of hydrochloric acid (HCl), and that's the smallest unit of this compound that there is. Because a molecule is a group of 2 or more atoms covalently bonded together, the smallest particles of ionic compounds are the respective ions. For example the smallest particle of the ionic compound sodium chloride (NaCl, or table salt) is a sodium ion (Na+) and a chlorine ion (Cl-).There is a "scaled up" application in physics and engineering, and it might apply to something like a grain of wheat being the representative particle of that grain crop. A kernel of corn might be the representative particle for that grain crop. A grain of salt might be the representative particle for granular salt as a market commodity. These are important because of considerations regarding density and "close packing" and "voids" in bulk quantities of each commodity. There are more examples of the application of the term if one looks.A given size granule of an aggregate might be the representative particle for analysis in something like moisture penetration in sand, small pebbles, or chunks of rock.On the other end of the scale, there are representative particles for certain applications in the physics lab where something like the characteristics of a particle beam may be under consideration. A certain particle of given mass and energy might be the representative particle for, say, the study of particle beam divergence.Most applications for the student will be in chemistry, and that's where the atom, molecule or, possibly, the ion, will be shown to be the representative particles of an element, a compound, or an electrolytic solution respectively.
ION haha apex is pretty boring huh
A particle diagram for Na2S would show two sodium (Na) ions bonded to one sulfur (S) ion. The sodium ions would be depicted as smaller, positively charged particles, while the sulfur ion would be depicted as a larger, negatively charged particle.
The representative particle for iodine is the iodine atom (I).
When a sodium atom loses a valence electron, it becomes a positively charged ion called a sodium ion (Na+). When a sodium atom gains a valence electron, it becomes a negatively charged ion called a sodium ion (Na-).
While a sodium ion and neon atom both have 10 electrons they are of different elements as a neon atom has 10 protons while sodium has 11. As a result the neon atom is neutral while the sodium ion carries a positive charge. So neon can exist on its own as a gas while sodium ion needs a negative ion to balance its charge and form an ionic solid.