8. What is the basic unit that represents each of the following? (a) quantum nature of electricity (b) quantum nature of light

Q: 7.21 Specify the group of the periodic table in which each of the following elements is found: (a)…

A: Electrons are filled in this order The outer electron configuration of the elements in group 1A is…

Q: 7.26 Define atomic radius. Does the size of an atom have aprecise meaning? Explain.

A: To find: Definition of atomic radius.  Does the size of an atom have a precise meaning? Explain

Q: Which has a lower ionization energy, an atom of selenium or an atom of tellurium?

A: Ionization energy: Energy required for an isolated gaseous atom to lose one electron to form…

Q: 6.83 Indicate the number of unpaired electrons present ineach of the following atoms: B, Ne, P, Sc,…

A: Electronic configuration represents the distribution of electrons in an atom.

Q: 5. How to tell the position of an element in the periodic table? Take the examples of 16S and 26Fe…

A: In periodic table, different type of elements are Present in different groups and period, according…

Q: What element does the following electron configuration represent: [Ar] 4s? 3d8 Answer in element…

A: In this question, we will see the element symbol which is related to [Ar], 4s2, 3d8  You can see…

Q: Which of the following statement about the * ?four quantum numbers is incorrect |= subsidiary (or…

A:

Q: Which atom has the largest atomic size, P, As, or Se?

A: The periodic variations in atomic size for neutral atoms can always be stated as follows: As moving…

Q: For the following categories of elements, state the possiblenumber(s) of electrons in their…

A: The electron configuration of an element describes how electrons are distributed in its atomic…

Q: 7.7 Write electron configurations for the following ions of main group elements: (a) N3−, (b) Ba2+,…

A: Given,  (a) N3−, (b) Ba2+, and (c) Be2+.

Q: Write the set of quantum number for Boron Atom Helium Atom Elements with the following electron…

A: Hi, we are supposed to answer one question. To get the remaining questions solved please mention the…

Q: 1s2s22p6 is the electron configuration for which element? A B Ne Ar D CI

A: The electron configuration of the element given is .

Q: The maximum number of electrons that can occupy the 5f orbitals is A) 10 5. B) 14 C) 18 D) 25 E)…

A: As here question number is not mentioned. So, i am performing first question.

Q: Which main group atom would be expected to have the lowest second ionization energy?

A:

Q: 6.124 When a compound containing cesium ion is heatedin a Bunsen burner flame, photons with an…

A: Given: Energy= 4.30×10-19J To find: The color of the cesium flame

Q: What element is represented by the electron configuration [Ar]4s23d104p? CI As Br Na WOO OO

A: Electronic configuration represents the arrangement of electrons in different subshell of various…

Q: 7.139 Experimentally, the electron affinity of an element canbe determined by using a laser light to…

A: The electron affinity of an atom or molecule is defined as the amount of energy released when an…

Q: 7.89 Which of the following properties show a clear periodicvariation: (a) first ionization energy,…

A: Let us analyse all the properties one by one. Ionisation  energy is  the minimum quantity of energy…

Q: What element in period 3 is a metalloid?   Give this element’s ground state noble gas orbital…

A:

Q: The energy difference between the 5d and 6s sublevels in gold accounts for its color. Assuming this…

A: Sublevels refer to energies associated with electrons Orbitals of equivalent energy are grouped in…

Q: Moseley established the concept of atomic number by studyingX rays emitted by the elements. The X…

A: a.

Q: What element has the electron configuration: [Xe] 6s2 ? A) Xe B) Cs C) Te D) Ba

A: Given, noble gas electronic configuration as [Xe] 6s2.

Q: (c) Is an isolated arsenic atom in the ground state paramagnetic or diamagnetic? Explain briefly.…

A: c)  The atomic number of As is 33 . Its electronic configuration in ground state is [Ar]3d104s24p3 .…

Q: d. If light with a wavelength of 690 nm strikes the photocathode, what is the maximum kinetic energy…

A:

Q: 7. How many photons of light are emitted when the electrons in a million hydrogen atoms drop from…

A: when an electron jumps from higher energy cell to lower energy cell release energy in the form of…

Q: higher ionization energy

A:

Q: What is the abbreviated electron configuration of element Platinum (Pt)?

A:

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: The atomic number of an element is 73. Is this element diamagnetic or paramagnetic?

A: Whenever two electrons are paired together in an orbital, or their total spin is 0, they are…

Q: An element has the following electron configuration, [Ar]3d104s²4p3. This element is a _-- O…

A: To solve this problem first we add the electrons present in each orbital to get total number of…

Q: 6a. Which type of ions – cations or anions – have smaller radii than the corresponding neutral…

A:

Q: The energy required to ionize one mole of lithium atoms is 520kj. What wavelength in nm of light is…

A:

Q: electron configuration of P.

A: Phosphorus 'P' has atomic number 15. 15P31 It has 15 electrons and 15 protons. Number of neutrons =…

Q: Question 3 of 22 Which of the following is not permitted as a plausible orbital designation…

A: for specific n value there are possible 0 to (n-1) values. for specific l value, ml is from (-l to…

Q: ionization energy,

A:

Q: When an electron moves from n=5 to n=3, would the human eye see any light? Explain.

A: To determine this, first it is required to calculate the wavelength of the light produced when an…

Q: Part 6: 6a. What trend in atomic radius occurs as you go up a group on the periodic table? Explain…

A: 6a.

Q: The atomic number of an element is 73. Is this element diamagnetic or paramagnetic? Explain why? (No

A:

Q: which has the smallest atomic radii K* ce- Ar 52- All Of these hare the same atomic Radi

A: Which one having smallest atomic radii ?

Q: What is the characteristic valence electron configuration of the group 7A elements, the halogens?

A: The halogens elements contain valence electrons of seven; two in s-orbital and seven in p-orbital.

Q: Define the following terms and give an example of each: lanthanides, actinides.

A: The given terms lanthanides and actinides has to be defined.

Q: The atom having the valence-shell configuration 6s 6p? would be in: Group VIA, Period 4 Group IVB,…

A:

Q: An atom of sodium has the electron configuration [Ne]6s1.Explain how this is possible

A: Electronic configuration could be defined as distribution of electrons in molecule (or) atom in…

Q: The outermost valence electron in atom A experiences an effective nuclear charge of 2+ and is on…

A: The effective nuclear charge and average distance from the nucleus is +2 and 225 pm of atom A and…

Q: 8. What is the shape of 2p orbital

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.