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Chapter 40: Q4Q (page 1246)

An atom of uranium has closed 6pand 7ssub shells. Which sub shell has the greater number of electrons?

Short Answer

Expert verified

The sub shell 6p has a greater number of electrons.

Step by step solution

01

The given data

A uranium atom has closed 6p and 7s subshells.

02

Understanding the concept of maximum electrons in a shell

For an electronic configuration, the nucleus of an atom is surrounded by orbital sub-shells that are represented by s, p, d, and f. Again, the maximum electron filling capacity of s, p, d, and f are 2, 6, 10, and 14, respectively.

So, using this concept on a filled sub-shell of an atom of uranium, we can get the electrons in each shell.

03

Calculation of the sub shell with a greater number of electrons

From the concept of maximum electrons filled in each shell, we can get that a p(n = 2) subshell has a greater number of electrons than that of s(n =2) subshell.

Thus, for a completely filled sub-shell of uranium, the sub-shell has 6 electrons that that to sub-shell 7s with 2 electrons.

Hence, the sub-shell 6p has more electrons.

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Most popular questions from this chapter

An electron in a multi-electron atom has ml=+4 For this electron, what are (a) the value of I, (b) the smallest possible value of n, and (c) the number of possible values of ms?

The active volume of a laser constructed of the semiconductor GaAIAs is only 200μm3(smaller than a grain of sand), and yet the laser can continuously deliver 5.0 mW of power at a wavelength of 0.8μm. At what rate does it generate photons?

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A population inversion for two energy levels is often described by assigning a negative Kelvin temperature to the system. What negative temperature would describe a system in which the population of the upper energy level exceeds that of the lower level by and the energy difference between the two levels is 2.26 eV?

Here are theKα wavelengths of a few elements:

Element

λ(pm)

Element

λ(pm)

Ti

275

Co

179

V

250

Ni

166

Cr

229

Cu

154

Mn

210

Zn

143

Fe

193

Ga

134

Make a Moseley plot (like that in Fig. 40-16) from these data and verify that its slope agrees with the value given for C in Module 40-6.
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