0
To use the example of helium, which has theelectronic structure 1s2. The 1 refers to the orbital number (1, 2, 3 etc, also known as the principal quantum number), the letter refers to the orbital type (s, p, d, f which corresponds to the azimuthal quantum number), and finally the superscript 2 refers to the number of electrons in that orbital.
So for helium's 1s2 we have 2 electrons in the 1s orbital (filling it).
Another example could be atomic iron which has the [Ar] 3d6 4s2 configuration. This is the argon electronic structure (1s2 2s2 2p6 3s2 3p6), and then 6 electrons in the 3d orbitals, and 2 electrons in the 4s orbital as well.
What else can I help you with?
Why halogens have highest negative electron gain enthalpy?
Good question. Halogens have their outer electronic configuration as ns2np5 and require only one more electron to gain a stable electronic configuration. So they have a great affinity for electrons and will accept them very easily by releasing energy. So they have the highest electron gain enthalpy.
Why electron affinity of fluorine is large?
Electron affinity of an element is defined as the energy released by adding an electron to a gaseous atom of the element. With the electronic configuration of the fluroine atom being [Ne] 2s2 2p5, it needs just one more electron to form the fluoride ion (F-) which has the noble gas structure and is much more stable.
How should a model of Boron look like?
A model of Boron would typically show it as a small, round atom with five protons and five neutrons in the nucleus, surrounded by two electron shells: the first shell with two electrons and the second shell with three electrons. Boron's electron configuration is 1s2 2s2 2p1.
Why the electron affinity of fluorine is less than that of chlorine?
Generally electron affinity goes up as you go from left to right across the Periodic Table, and decreases as you go down a column. However, fluorine is an exception -- and the element with the highest electron affinity is chlorine (note that the most electronegative element is fluorine however).The reason that the electron affinity is not as high as might otherwise be predicted for fluorine is that it is an extremely small atom, and so it's electron density is very high. Adding an additional electron is therefore not quite as favorable as for an element like chlorine where the electron density is slightly lower (due to electron-electron repulsion between the added electron and the other electrons in the electron cloud).Note that there are a number of other exceptions to the general rule of electron affinity increasing towards the upper right corner -- see the Related Questions links to the left for an explanation of some of those other exceptions.See also the Web Links to the left for more information about electron affinities and the fluorine-chlorine exception.
Is the universe an electron?
An electron is very small. So small that you cant even see it with an electron microscope (because it uses electron to detect itself). It's mass is tiny. Billions of times less than a kg. It's just one type of matter. Some estimates put the number of electrons in the universes at greater than 10100. So no, the universe is not an electron.
What has the author Andrew Crowther Hurley written?
Andrew Crowther Hurley has written: 'Electron correlation in small molecules' -- subject(s): Electron configuration, Molecular theory
Why halogens have highest negative electron gain enthalpy?
Good question. Halogens have their outer electronic configuration as ns2np5 and require only one more electron to gain a stable electronic configuration. So they have a great affinity for electrons and will accept them very easily by releasing energy. So they have the highest electron gain enthalpy.
Why is harder for group 7 atoms to gain an electron?
Group 7 atoms, also known as the halogens, have a full outer electron shell and are one electron short of having a full shell. Due to their high electronegativity and small atomic radius, they strongly attract electrons in order to achieve a stable electron configuration, making it harder for them to gain an additional electron.
Why electron affinity of fluorine is large?
Electron affinity of an element is defined as the energy released by adding an electron to a gaseous atom of the element. With the electronic configuration of the fluroine atom being [Ne] 2s2 2p5, it needs just one more electron to form the fluoride ion (F-) which has the noble gas structure and is much more stable.
Why would flurine have the highest electron affinity?
Fluorine has the highest electron affinity because it has a small atomic size and high effective nuclear charge, which results in a strong attraction between the nucleus and incoming electrons. This strong attraction allows fluorine to readily accept an additional electron and achieve a stable electron configuration.
Which subatomic particle is very small?
Proton is a positive particle and electron is a negative particle.
What is a barillet?
A barillet is a small cask, or something representing a small cask.
Who are the small statues representing on Liberty Island?
ali chouman
How should a model of Boron look like?
A model of Boron would typically show it as a small, round atom with five protons and five neutrons in the nucleus, surrounded by two electron shells: the first shell with two electrons and the second shell with three electrons. Boron's electron configuration is 1s2 2s2 2p1.
How small is a electron?
An electron is 1836 times smaller then a proton.The mass of an electron is 9,10938291(40)×10−31 kg.
What is the particle size of a electron?
Very small...very small indeed.
Is an electron bigger then an atom?
No. An electron as a particle is small however the probability cloud of an electron can be large- most of the volume of an atom consists of the electron cloud. In relation to this the nucleus, although it contains nearly all of the mass of the atom, is quite small.
