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Chapter 6: Q.86E. (page 338)

Explain why Al is a member of group 13 rather than group 3?

Short Answer

Expert verified

Aluminum falls in the p block, in which elements have 3 valence electrons in the p orbital and group 13 has a single electron in a subshell.

Step by step solution

01

Groups in the periodic table

The vertical columns in the periodic table are called groups.

An element is present in its respective group because of its two aspects, chemical properties, and valence electrons.

Elements with valence electrons 1, 2, 3, 4, 5, 6, 7, 8 are in group 1, 2, 13, 14, 15, 16. 17, 18 respectively. Properties vary as alkaline earth metals are placed in group 2. Similarly, elements in group 15 are pnictogens. Elements in group 16 are chalcogens. Elements in group 17 are halogens.

02

Aluminum is a member of group 13

Aluminum falls in the p block, in which elements have 3 valence electrons in the p orbital and group 13 has a single electron in their valence shell.These fulfill the criteria of the characteristics of aluminum.

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Most popular questions from this chapter

Question:Read the labels of several commercial products and identify monatomic ions of at least four transition elementscontained in the products. Write the complete electron configurations of these cations.

Question:How many electrons could be held in the second shell of an atom if the spin quantum numbermscould havethree values instead of just two? (Hint: Consider the Pauli exclusion principle.)

Question:Which of the following atoms contains only three valence electrons: Li, B, N, F, Ne?

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

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

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