Identify the element for each of these electron configurations. Then determine whether this configuration is the ground state or an excited state.

a. 1s22s22p53s

b. 1s22s22p63s23p64s23d2

Short Answer

Expert verified

a. This configuration is for element Neon(Ne).

b. This configuration is for element Titanium(Ti).

Step by step solution

01

Part (a) step 1: Given Information

We need to find the configuration is the ground state or an excited state1s22s22p53s.

02

Part (a) step 2: Explanation

The electron configuration is:

1s22s22p53s

The electron configuration has 10electrons so, Z=10and this configuration is for element Neon(Ne).

03

Part (b) step 1: Given Information

We need to find the configuration is the ground state or an excited state

04

Part (b) step 2: Explanation

The electron configuration is:

1s22s22p63s23p64s23d2

The electron configuration has 22electrons then,z=22 this configuration is for element TitaniumTi.

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Most popular questions from this chapter

The 1997 Nobel Prize in physics went to Steven Chu, Claude Cohen-Tannoudji, and William Phillips for their development of techniques to slow, stop, and “trap” atoms with laser light. To see how this works, consider a beam of rubidium atoms (mass 1.4x10-25kg) traveling at 500m/safter being evaporated out of an oven. A laser beam with a wavelength of 780nmis directed against the atoms. This is the wavelength of the 5s5ptransition in rubidium, with 5sbeing the ground state, so the photons in the laser beam are easily absorbed by the atoms. After an average time of 15ns, an excited atom spontaneously emits a 780-nm-wavelength photon and returns to the ground state.

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