Show
Recommended textbook solutionsFundamentals of Physics10th EditionDavid Halliday, Jearl Walker, Robert Resnick 8,919 solutions
Sears and Zemansky's University Physics14th EditionHugh D. Young, Roger A. Freedman 8,275 solutions
Atkins Physical Chemistry10th EditionJulio de Paula, Peter Atkins 1,315 solutions College Physics11th EditionChris Vuille, Raymond A. Serway 5,036 solutions Get the answer to your homework problem. Try Numerade free for 7 days California State University - East Bay We don’t have your requested question, but here is a suggested video that might help. Related QuestionIdentify the atom with the following ground-state electron configuration:
DiscussionYou must be signed in to discuss. Video Transcriptidentify the Adam would've Foley a ground stayed electric operation. Right. Let's look at the question. Because this one has no picture. Um, I'm match this question to the test book, and I got 15 point. I ask my questions. Um, the other one is already more questions, so I'm assuming that that was given. So anyway, I'm gonna you answer this question So we have a G, and we have I mean, e r. And we have this. So they are, and then we have to fool six eight ny e r plus 10 Elektra. Let's see. Ways there a r 18 a lateral, 18 last animal That will be 20 eights Unless he weighs it. That will be an eye. Okay. And I will be correct answer for this. So for this question, when I say and I because we're saying that 18 plus 10 more Okay, so again, it has to do Ellen trickeration. That was giving a r was 18 plus these little Eros pictures on melon or for the whole thing that was 10. So together 28 we're looking for 28. And so the only prudent table things that is 28 is gonna to be an eye. So therefore is giving us and I That's oh answered Ground state electron configurations are the foundation for understanding molecular bonding, properties, and structures. From the electrons in an atom, to the differing orbitals and hybridization, the ground state electron configuration sheds light on many different atomic properties. Fundamentally, understanding electron configuration leads to an understanding of the periodic table. In 1913, Niels Bohr proposed that electrons could orbit an atom at a certain distance without collapsing into the atom, and that each orbit distance had its own energy level. He proposed that each orbital’s angular momentum, M, was equal to a multiple, n, of Plank’s
constant, h, divided by 2π. This gives the equation: M = nħ where ħ= h/2π and n= 1,2,3,4 This model proposed the Bohr atom, which shows circular orbits surrounding the nucleus. OrbitalsIn addition to having different energy levels, orbitals also have different shapes and orientations, and each can be occupied by two electrons. For each principal quantum number, n, there is one s orbital, three p orbitals, five d orbitals and seven f orbitals. Therefore, an s orbital can hold two electrons, a p orbital can hold six electrons, a d orbital can hold ten electrons, and an f orbital can hold 14 electrons. Ground State Electron ConfigurationQuantum numbersThere are four quantum numbers n, l, ml, and ms. The principal quantum number n is a positive integer (1,2,3,4) and it represents the energy of the orbital. The angular momentum quantum number l, is from 0 to n – 1. The l values of 0, 1, 2, and 3 correspond to the s, p, d and f orbitals, respectively. The magnetic quantum number ml ranges from –l to +l. This quantum number dictates the orbital orientation, such as px, py, or pz. The quantum spin number ms, is either +1/2 or -1/2 and it dictates the electron spin. Aufbau PrincipleThe Aufbau principle states that electrons must fill lowest energy shells first. Following the model, electrons fill the 1s orbital with two electrons, then the 2s with two electrons, then the 2p with six electrons, then the 3s with two electrons, etc. There are some exceptions to the Aufbau Principle. This occurs mainly with electrons in the d orbital where extra stability is obtained from a half filled or fully filled d orbital. Therefore, if there are 4 electrons, or 9 electrons in the d orbital, it will move one electron from the s orbital below it to fill the extra space.
Hund's RuleHund’s rule states that when filled sub-levels other than s orbital, electrons must not be spin paired in the orbitals until each orbital contains one electron, and no orbital can have two electrons with the same spin (ms). Pauli Exclusion PrinciplePauli Exclusion Principle states that no two electrons can have the same quantum numbers. An orbital can only hold 0, 1, or 2 electrons. They must have opposite spins if there are 2 electrons in the orbittal. Periodic TrendValence electron shells in the periodic table follow a trend. This can be referred to as the s block, the p block, the d block and the f block (lanthanides and actinides) meaning that, in its ground state, an element in a certain "block" will have its valence electrons in the s, p, d, or f orbitals depending. How to Write Ground State Electron ConfigurationsBasicsElectron configurations are written using the principal quantum number n, followed by the orbital (s, p, d, or f) with the total number of electrons written as a superscript. Example: 1s2 For writing ground state electron configurations, a few main steps should be followed.
Example: Na: 11 e- 1s2 2s2 2p6 3s1or Na+: 1s2 2s2 2p6
ShorthandBecause writing the entire electron configuration can become cumbersome, there is a shorthand option. It is done by using the symbol of the noble gas in the period above the element to represent the electron configuration before it. Example: Na: [Ne] 3s1 References
Outside Links
Problems
Solution 1. Expanded: 1s2 2s2 2p6 3s2 3p5 Shorthand: [Ne] 3s2 3p5 Solution 2. Expanded: 1s2 2s2 2p6 3s2 3p6 4s13d5 Shorthand: [Ar] 4s13d5 Solution 3. Expanded: 1s2 2s2 2p6 3s2 3p6 4s13d10 Shorthand: [Ar] 4s13d10 Solution 4. Expanded: 1s2 2s2 2p6 3s2 3p6 4s23d5 Shorthand: [Ar} 4s23d5 Solution 5. 1s2 2s2 2p6 3s2 3p6 Contributors and Attributions
What are ground state electron configurations?The ground state electron configuration is the arrangement of electrons around the nucleus of an atom with lower energy levels. The electrons occupying the orbitals of varying energy levels naturally falls towards the lowest energy state or ground state.
Does ground state mean n 1?The n = 1 state is known as the ground state, while higher n states are known as excited states. If the electron in the atom makes a transition from a particular state to a lower state, it is losing energy.
How do you write ground electron configuration?Electron configurations are written using the principal quantum number n, followed by the orbital (s, p, d, or f) with the total number of electrons written as a superscript.
|