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Chapter 6: Q56E (page 336)

Question:Which atom has the electron configuration 1s22s22p63s23p63d74s2?

Short Answer

Expert verified

The atom is cobalt (Co).

Step by step solution

01

analyzing the given data

Given electron configuration = 1s22s22p63s23p63d74s2

To find; the atom with the given configuration

02

determining the atom which has the given electron configuration

Observing the periodic table, to identify an atom with the electron configuration 1s22s22p63s23p63d74s2, we need to focus on 3d74s2, this leads us to atomic number 27, which is Co (Cobalt) in the periodic table.

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Most popular questions from this chapter

Question:Which of the following equations describe particle-like behavior? Which describe wavelike behavior? Do any

involve both types of behavior? Describe the reasons for your choices.

(a)c=λν

(b)E=mν2

2

(c)r=n2a0

Z

(d)E = hν

(e)λ=h

mν

Question:In one area of Australia, the cattle did not thrive despite the presence of suitable forage. An investigationshowed the cause to be the absence of sufficient cobalt in the soil. Cobalt forms cations in two oxidation states, Co2+and Co3+. Write the electron structure of the two cations.

Based on their positions in the periodic table, rank the following atoms or compounds in order of increasing first ionization energy:\({\bf{Mg}},{\rm{ }}{\bf{O}},{\rm{ }}{\bf{S}},{\rm{ }}{\bf{Si}}\).

If a shell contains a maximum of 32 electrons, what is the principal quantum number,n?

Question:Using complete subshell notation (not abbreviations, 1s22s22p6, and so forth), predict the electron configuration

of each of the following atoms:

(a) C

(b) P

(c) V

(d) Sb

(e) Sm
See all solutions

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