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Chapter 40: Q7Q (page 1246)

An electron in a mercury atom is in the 3dsub-shell. Which of the following mlvalues are possible for it: -3, -1, 0, 1, and 2?

Short Answer

Expert verified

The possible values for 3d the sub-shell of the electron of mercury atom are -1,0,1,2.

Step by step solution

01

The given data

An electron in a mercury atom is in the 3d sub-shell.

02

Understanding the concept of the subshell of an orbital

Using the concept of possible values for the magnetic quantum number that depends on the orbital angular quantum number, we can get the required possible values of the magnetic number.

For every l value of a subshell, we have -l to +I possible m values for the same electron.

03

Calculation of the possible values of ml

We have an electron of mercury atom in 3d subshell; thus, the value of the orbital quantum number is given by:

I=2n=3,forthedsubshell

Thus, the possible values ofml are: -2,-1,0,1,2.

Hence, the possible values considering the question are -1,0,1,2.

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Most popular questions from this chapter

X-rays are produced in an x-ray tube by electrons accelerated through an electric potential difference of 50 kV. LetK0 be the kinetic energy of an electron at the end of the acceleration. The electron collides with a target nucleus (assume the nucleus remains stationary) and then has kinetic energy K1=0.500K0. (a) What wavelength is associated with the photon that is emitted? The electron collides with another target nucleus (assume it, too, remains stationary) and then has kinetic energy K2=0.500K1. (b) What wavelength is associated with the photon that is emitted?

Show that a moving electron cannot spontaneously change into an x-ray photon in free space. A third body (atom or nucleus) must be present. Why is it needed? (Hint: Examine the conservation of energy and momentum.)

Consider the elements selenium Z = 34 , bromine Z = 35 , and krypton Z = 36 . In their part of the periodic table, the sub- shells of the electronic states are filled in the sequence 1s2s2p3s3p3d2s2p........ . What are (a) the highest occupied subshell for selenium and (b) the number of electrons in it, (c) the highest occupied subshell for bromine and (d) the number of electrons in it, and (e) the highest occupied subshell for krypton and (f) the number of electrons in it?

How many electron states are there in a shell defined by the quantum number n = 5 ?

Label these statements as true or false:

(a) One (and only one) of these sub shells cannot exist: 2p,4f,3d,1p

(b) The number of values ofml that are allowed depends on l and not on n.

(c) There are four sub shells for n = 4 .

(d) The smallest value of for a given value of l is l + 1 .

(e) All states with l = 0 also haveml=0 .

(f) There are n sub shells for each value of n .

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