2017年1月10日 · $\ce O$ is a free oxygen atom and $\ce{O2}$ is two oxygen atoms chemically bound to form an oxygen molecule. There is no common analogy for $\ce C$, but $\ce{N2}$ is called nitrogen, $\ce{H2}$ is hydrogen and $\ce{Cl2}$ is chlorine, each having the same name as that of their constituent elements.

2020年9月17日 · According to the MO diagrams, the bond order of $\ce{O2}$ is 2 and that of the cation $\ce{O2+}$ is 2.5 (after all, we are removing an antibonding electron). Indeed, the bond length of the cation is shown as smaller in this source. I did not find a bond length for the $\ce{F2+}$ species. This shows that you have to at least adjust the MO ...

2023年2月18日 · O2-: Two electrons are added there is more inter-electronic repulsion, so the radius increases (and it is more than F-, because here two electrons are added but in F- only one electron was added) In these questions where we compare the radius of isoelectronic species, i.e. species with same number of electrons, we compare the ratio of Nuclear ...

2019年7月5日 · The size of an anion is greater compared to its parent atom because former's effective nuclear charge is lesser than that of latter. I found on wikipedia that the effective nuclear charge can be calculated by the formula: Zeffective = No. of protons in the nucleus - No. of non-valence electrons. For oxygen atom, the electronic config is: 1s2 ...

Since an oxygen atom has 6 electrons, A would correspond to a structure with a single bond between the oxygen atoms, 2 lone pairs on each oxygen and an unpaired electron on each oxygen; however A does not have an octet around each oxygen, in fact, each oxygen would only have 7 electrons

2018年2月25日 · Well, it depends on other factors as well... We cannot find the definite volume given your conditions, as the volume also depends on the pressure and the temperature. Given: 0.4 moles of O_2 atoms Let's use the standard conditions for temperature and pressure, or STP, which is 0^@C=273 \\ "K" and exactly 100 \\ "kPa". We use the ideal gas law: PV=nRT P is the pressure, V is the volume, n is ...

2017年5月30日 · $\begingroup$ The 2 O represents two separate oxygen atoms, ( not connected to one another so free to move around and react independently ), the $\ce{O2}$ is molecular oxygen. $\endgroup$ – porphyrin

2018年11月25日 · Diamond and graphite are both arrangements of carbon atoms, each with very different properties and yet they are both pure carbon, as is a single carbon atom, of course. Likewise $\ce{O2}$ is as much oxygen as atomic oxygen is. The only complication is that what we habitually think of as oxygen is oxygen as a gas comprised of $\ce{O2 ...

2016年7月5日 · O_2 is actually a molecule of oxygen. Oxygen is one of the diatomic molecules formed by covalent molecules allowing the electrons of the element to pair and stabilize the atoms. There are seven diatomic molecules formed by elements where in their natural states they form pairs molecular atom paris. H_2, O_2, N_2, Cl_2, Br_2, I_2, F_2

2015年9月5日 · An atom is a thing; an element is a type of thing. An atom is a collection of protons, neutrons and electrons. A single, isolated atom in its neutral state has some number of protons, the same number of electrons and some number neutrons (about as many as protons for the lighter elements, up to about 50% more, for heavier elements).