Energy expression is , En = -13.6 (z2/n2 ) eV
From the expression we can see that as the atomic number increases (z) , the value of energy will decrease and as principal quantum number (n) increases the value of energy will increase.
For having lowest energy ,z value should high and n value should low.
So the correct answer is 1s electron in Li
which electron listed below would have the lowest energy? expalin your answer • a 1s electron...
Which two elements have only one electron shell (n=1) when in their lowest energy state? H and Na H and He He and Li He and Ar
part a Write the electron configuration for the element titanium, Ti. Express your answer in order of increasing orbital energy as a string without blank space between orbitals. For example, the electron configuration of Li could be entered as 1s^22s^1 or [He]2s^1. Part B How many valence electrons does this atom possess? Express your answer as an integer. pART c Hafnium, Hf, is also found in group 4B. Write the electron configuration for Hf. Express your answer in order of...
eleven an energy level? eren 15) Why does it take more energy to remove an electron from Althan from Al? 16) Distinguish between an atom in its ground state and an excited atom. 17) Which of the following notations shows the electron configuration of a neutral atom in an excited state? Name the element, and explain how you know if it is excited or not: 1s 2s 2p' (b) 1s 2s 2p 3s! Oxygen is in excited States oxygen crtom...
Considering the generic atomic orbital energy diagram; rank the three proposed electronic transitions-1s → 2s , 2s → 2p 34s-from lowest energy photon to highest energy photon required to induce the three proposed transitions. 9. 10. If an electronic transition from 4s3s results in emission of a "green" photon for a given elemental atom, then the electronic transition from 2s 1s would result in emission of a "red" or "blue" photon? 11. Considering the atomic orbital energy diagram in the...
Q42. Which elements have these electron configurations? Give both the symbol and the name: a. 1s 2s22p": b. 1s?2s22p 3s': c. 1s 2s 2pº3s 3p: d. [Ar]4s 3d: e. (Ne]3s 3p": f. [Kr]5s4d!º5p a
Via the periodic table, how would you organize the electron shells from the lowest energy level to the highest? Li being the lowest and Ne being the highest due to the amount of valence electrons in the outer shell?
The trend in second ionization energy for the elements from lithium to fluorine is not a smooth one. Predict which of these elements has the highest second ionization energy and which has the lowest and explain your choices. (fill in the blank) Based on the electron configuration of the 1+ ions ___ should have the ____second ionization energy since the removal of the second electron involves removing a core electron. The _____ second ionization energy should have ____ since removing...
Which of the areas listed below would have the lowest pO2? A. Blood entering the right atrium B. Blood entering the left atrium C. Blood entering the body capillaries D. Blood leaving the body capillaries E. The interstitial fluid
Write the ground-state electron configuration for excited
states.
Write the ground-state electron configuration for excited states. (Express your answer as a series of orbitals. For example, the electron configuration of Li would be entered as 1s-2s or [He12s1.) 1s22s22p63 ргэр 1s*2p 22nl 2 22621 2
In the animation, you can see that the electrons occupy
different orbitals according to the energy level of each orbital. A
single box represents an orbital. The unpaired electron is
represented aswhereas the paired electrons in
the same orbital are represented by two arrows pointing in opposite
directions:. Watch the animation and
identify which of the following statements are correct.
Check all that apply.
The He atom has two electrons that have parallel spin in its
1s orbital.
In the...