Chapter 6: Q. 6.149 (page 210)

Identify the group number in the periodic table of $X$ , a representative element, in each of the following ionic compounds: $(6.2)$
a. $X C l_{3}$
b. $A l_{2} X_{3}$
c. $X C O_{3}$

Short Answer

Expert verified

a. The group number is $3 A (13)$ .

b. The group number is $6 A (16)$ .

c. The group number is $2 A (2)$ .

Step by step solution

Part (a) step 1: Given Information

We need to identify the group number of $X C l_{3}$ .

Part (a) step 2: Simplify

Consider: $X C l_{3}$

ion of Chlorine $C l^{-}$ change of $X$ is $x$ so by change balance:

$x + 3 (1 -) = 0 x = 3 +$

Therefore, ion of $x ‐ ‐ ‐ X^{3 +}$

Here, three electrons donated to achieve octect so group is $3 A (13)$ .

Part (b) step 1: Given Information

We need to identify the group number of $A l_{2} X_{3}$ .

Part (b) step 2: Simplify

Consider: $A l_{2} X_{3}$

ion of Aluminium $A l^{3 +}$ change of $X$ is $x$ so by change balance:

$3 x + 2 (3 +) = 0 x = 2 -$

Therefore ion of $x ‐ ‐ ‐ X^{2 -}$

Here, two electrons accepted to achieve octect so the group is $6 A (16)$ .

Part (c) step 1: Given Information

We need to identify the group number of $X C O_{3}$ .

Part (c) step 2: Simplify

Consider: $X C O_{3}$

ios of Carbonate ${C O}_{3}^{2 -}$ charge of $X$ is $x$ so by charge balance:

$x + (2 -) = 0 x = 2 +$

Therefore, ion of $x ‐ ‐ ‐ X^{2 +}$

Here, two electrons donated to achieve octect so group is $2 A (2)$ .

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Identify the group number in the periodic table of $X$ , a representative element, in each of the following ionic compounds: $(6.2)$
a. $X C l_{3}$
b. $A l_{2} X_{3}$
c. $X C O_{3}$

Short Answer

Step by step solution

Part (a) step 1: Given Information

Part (a) step 2: Simplify

Part (b) step 1: Given Information

Part (b) step 2: Simplify

Part (c) step 1: Given Information

Part (c) step 2: Simplify

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Identify the group number in the periodic table of X, a representative element, in each of the following ionic compounds: (6.2)a.XCl3b.Al2X3c.XCO3

Short Answer

Step by step solution

Part (a) step 1: Given Information

Part (a) step 2: Simplify

Part (b) step 1: Given Information

Part (b) step 2: Simplify

Part (c) step 1: Given Information

Part (c) step 2: Simplify

One App. One Place for Learning.

Most popular questions from this chapter

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Identify the group number in the periodic table of $X$ , a representative element, in each of the following ionic compounds: $(6.2)$
a. $X C l_{3}$
b. $A l_{2} X_{3}$
c. $X C O_{3}$