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Chapter 6: Q74E. (page 337)

Atoms of which group in the periodic table have a valence shell electron configuration of\({\bf{n}}{{\bf{s}}^{\bf{2}}}\)?

Short Answer

Expert verified

Group 2 (alkaline earth metals) has the electron configuration \(n{s^2}\).

Step by step solution

01

Electronic configuration

The regular arrangement of electrons in the atomic orbitals is called electronic configuration. The physical and chemical properties of the elements are the periodic functions of their atomic numbers or electronic configurations.

The sum of the superscripts in the electronic configuration of an element represents the total number of valence electrons in it.

The n value in the electronic configuration represents the shell number.

02

Group 2 elements

The given general electronic configuration is\(n{s^2}\).

The total number of valence electrons in it is two.

Thus, the group number is IIA or group 2. (alkaline earth metals).

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Most popular questions from this chapter

Question:Is 1s22s22p6 the symbol for a macroscopic property or a microscopic property of an element? Explain youranswer.

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

How many orbitals havel= 2 andn= 3?

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

Based on their positions in the periodic table, list the following atoms in order of increasing radius: Sr, Ca, Si, Cl.
See all solutions

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