An electron falls to the n= 1 energy level (i.e. nf =1) during a transition. The wavelength of the line emitted was 95 nm. Calculate the energy level the electron fell from (i.e. ni) to the nearest whole number. Calculate the energy of this line. 12. What is the difference in explanation between the quantum mechanical treatment of the electron in the atom and that from classical physics? 13. Based on quantum mechanics, the wave function of an atomic orbital has four quantum numbers. (a) What is the name and symbol of each of these quantum numbers? (b) Briefly explain which property of the atom each quantum number governs. (c) What are the permitted values for each quantum number? 14. Give the allowable combinations of quantum numbers for each of the following electrons: (a) A 4s electron (b) A 3p electron (c) A 5f electron (d) A 5d electron 15. Tell which of the following combinations of quantum numbers are not allowed. Explain your answers. (a) n = 3, l = 0, ml = -1 (b) n = 3, l = 1, ml = 1 (c) n = 4, l = 4, ml = 0 16. What type of electron orbital (s, p, d, f) is designated by: (a) 14 a above (b) 14 b above (c) n = 4, l = 3, ml =3 17. State the total capacity for electrons in: (a) n = 4 (b) a 3s sublevel (c) a d-sublevel (d) a p-orbital 18. Give the expected ground state electron configuration for the following species with and without the use of the abbreviation of the proceeding noble gas to represent inner-shell electrons. (a) O2(b) Cl(c) Ge (d) Cu2+ (e) Ta 19.…
iii. The electromagnetic radiation absorbed by each atom has a definite frequency related to the difference in energy levels by ∆E = hv…
(c) Although the normal trend is for the ionization energy to increase going to the right in a period, aluminum has a lowered ionization energy and magnesium has a raised ionization energy due to the electron configurations of these two ionizations. This reverses the order of ionization energies.…
23. As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit increase or…
A) Isotopes of the same element differ only in the number of electrons they contain.…
Introduction: In this assignment, I will explain the role of hardware and software components within a computer system. Furthermore, I will explain how they relate to digital graphics.I will also recommend suitable components for Cambridge Industrial Design. (P1)…
CHAPTER 1 INFORMATION TECHNOLOGY1.0 Introduction Information technology (IT) is the design, development, implementation, support, and management of computer hardware and software applications. An IT professional is knowledgeable about computer systems and operating systems. This chapter will review IT certifications and the components of a basic personal computer system.After completing this chapter, you will meet these objectives: * Explain IT industry certifications. * Describe a computer system. * Identify the names, purposes, and characteristics of cases and power supplies. * Identify the names, purposes, and characteristics of internal components. * Identify the names, purposes, and characteristics of ports and cables. * Identify…
1. ____ According to the wave-mechanical model of the atom, electrons in an atom (1) travel in defined circles (3) have a positive charge (2) are most likely found in an excited state (4) are located in orbitals outside the nucleus 2. ____ What is the total charge of the nucleus of a carbon atom? (1) –6 (2) 0 (3) +6 (4) +12 3. ____ When an atom loses one or more electrons, this atom becomes a (1) positive ion with a radius smaller than the radius of this atom (2) positive ion with a radius larger than the radius of this atom (3) negative ion with a radius smaller than the radius of this atom (4) negative ion with a radius larger than the radius of this atom 4. ____ Which electron configuration could represent a strontium atom in an excited state? (1) 2–8–18–7–1 (3) 2–8–18–8–1 (2) 2–8–18–7–3 (4) 2–8–18–8–2 5. ____ Which grouping of circles, when considered in order from the top to the bottom, best represents the relative size of the atoms of Li, Na, K, and Rb, respectively? 6. ____ What is the total number of neutrons in an atom of (1) 26 (2) 31 (3) 57…
3. (a) What is the trend in first ionization energies as one moves across the fourth period from K to Kr?…
3. (5 points) List the elements Na, Ca, Rb, Cl, He in order of decreasing first ionization energy. (a) He > Cl > Ca > Na > Rb (b) He > Na > Ca > Cl > Rb (c) He > Na > Cl > Ca > Rb (d) Rb > Ca > Cl > Na > He…
You should therefore be able to identity the main component of the computer systems and the how these components are interconnected. The basic block of a functional computer components are logic circuits. The course has made you to acquire knowledge on how to construct different logic circuits given any inputs and corresponding expected…
Describe and explain the trends for effective nuclear charge, atomic radius, ionic radius, and ionization energy across a period and down a group.…
As you have discovered, there are a variety of computers available, from the smallest computer in a domestic device to the supercomputers used in industry. Despite the different uses of computers, they all have basics elements in common- each computer system involves hardware, software, data, & users. Think about the role of each component of your home or work computer. How do the components of your computer system interact within the system? What improvements or additions to your system do you think would benefit you or make the system more user-friendly? Why?…
group stepped in to help make their own soap. However, they, do not want to use…
The issues at stake here are that the main characters involved in this are somewhat…