Which electron(s) in the S atom experience the greatest shielding of the nucleus? 2p 2s 1s 3p 3s

Q: How many electrons would be found in an atom that has the n = 1 and n = 2 energy levels filled? 2 6…

A: Electronic configuration represent the filling of electrons in the orbitals using Aufbau rule in…

Q: 1A SA 1 4p 3A 4A 5A 6A 7A Не 2A 3d Li Be B C N O F Ne Зр Na Mg Al Si P S ci Ar 3B 4B 5B 6B 7B - 8B -…

A: Hydrogen -> Number of protan = Number of electrons =1

Q: emitted when an electron decays from the n=6 to the n=1 energy level?

A: We will use relation with  quantum number and frequency.

Q: Rank the following atoms in order of increasing Atomic Size: In, Ga, Sr, S, Cs

A: The periodic table of the elements is a tabular representation of the chemical elements in rows…

Q: Which quantum number describes the size of the area in which an electron will be found in? m₁ ms d

A: Here is the multiple choice question

Q: Which of the following electrons indicated with an asterisk will be the lowest in energy? 2s 1s 1s…

A: The negatively charged electrons are attracted by the positive charge of the nucleus. As the number…

Q: Fix any errors in these proposed electron configurations. number of electrons in atom 16 15 7…

A: Electron configuration is arrangement of electrons in atomic orbitals according to their increasing…

Q: What is the smallest principle quantum number (n) for a d-electron? 0 1

A: The question is based on the concept of quantum numbers. we need to identify lowest possible value…

Q: 9. Spectral lines are shown in the image below. But what are they? Explain how spectral lines are…

A: Each element  have different  spectra due to different number of electrons  in valence  shell.

Q: Which of the following elements contains the largest number of unpaired electrons? Group of answer…

A: We know that, each atomic orbital of an atom has the capacity to contain two electrons. The electron…

Q: the following elements in order of increasing atomic size: P, O, S.

A: -> On going left to right in periodic table atomic size of element decreases because effective…

Q: Define shielding and effective nuclear charge.What is the connection between the two?

A: The nuclear charge experienced by the valence or outer electrons is not equal to the actual nuclear…

Q: Which quantum number (n, I, ml, ms) determines the energy of an electron? * ml ms

A:

Q: write the electron configuration of scandium (Sc=, Z=21)

A: Electrons are filled in the manner  1s2s2p3s3p4s3d But written in the manner 1s2s2p3s3p3d4s

Q: If calcium has an emission line at 657 nm, the electron travels from what energy level to n = 2? n₁…

A:

Q: Group of elements in which the d orbitals are being filled: lanthanide series O noble gases…

A: Group of elements in which d orbitals are being filled.

Q: What is the e/m ratio of an electron?

A: e = charge of an electron, m= mass of electron  J.J.Thomson was able to determine the e/m ratio by…

Q: Could someone explain why the electron configuration of Pb is [Xe] 6s 4f^14 5d^10 6p^2   I got…

A:

Q: How many unpaired electrons are contained in each element: (a) Al; (b) P; (c) Na?

A: The number of unpaired electrons present in given elements has to be determined.

Q: How many of the following elements have 2 unpaired electrons in the ground state? Sn Se Zr Ge…

A: From their ground state electronic configurations, we can find out the unpaired electrons

Q: Order the following elements according to increasing number of unpaired electrons in the electronic…

A:

Q: How much energy does an electron need to absorb in order to go from n=1 to  n=5?  (k=2.179*10-18J)

A: When an electronic transition takes place from a lower energy level to a higher energy level energy…

Q: that

A:

Q: How many unpaired electrons are contained in each element: (a) Cl; (b) Se; (c) Cs?

A: the number of unpaired electrons can be determined from the electronic configuration.

Q: What causes the shielding effect to remain constant across a period? B I

A: Shielding effect across a period:

Q: Which element has the following ground state election Configuration? 15² 25² 2p 35² 3p5 CI, F, S, or…

A:

Q: Given an element with an electron configuration of [Kr]5s²4d¹05p², which of the following statements…

A: 1)  Given :-  The given electronic configuration is [Kr] 5s2 4d10 5p2…

Q: What is the identity of the element with the following electron configuration:  1s22s22p63s23p1

A: Given that, the electron configuration of the element is---- 1s2 2s2 2p6 3s2 3p1 So, the element…

Q: How many unpaired electrons are present in the ground state of an atom from each of the following…

A: a. In ground state 2A group, there is no unpaired electron. b. In ground state 5A group, there are…

Q: If calcium has an emission line at 657 nm, the electron travels from what energy level to n = 2? n;…

A: Answer - The correct option is -(b) = 3 Solution -

Q: 1. The following is an electron transfer reaction between two atoms: Cu + O ----> Cu2+ + O2- Which…

A: Given,

Q: With specific reference to the Calcium atom, describe what is meant by the term 'shielding effect'.

A: Shielding effect: Shielding effect is defined as the decrease in attraction between an electron and…

Q: Part A: What group does Xe belong to? Alkali metals Alkaline Earth metals Transition…

A: Part A:  Xe belong to Noble Gases.  Part B:   They are "inert", non-reactive with other elements is…

Q: Which element has the largest atomic radius? - Ca - Zn - Cd - Sr Which of the following atoms are…

A: On moving down the group the atomic size increases as the number of shell of an atom increases…

Q: The artificial element 114 (flervium) was created in in Russia in 1998. It has an atomic number of…

A: Flerovium is an artificially made heavy radioactive element.

Q: Which of the following energy-level changes for an electron is most energetic? 3 → 2 3 → 1 6 →1 4 →…

A: The energy of electron in any level n for any atom with atomic number Z is given y  En = -2.18 X…

Q: Determine the amount of energy lost by an electron that drops from the eight (n=8) to the first…

A: