Question

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

a. Fe²+ : 1s²2s²2p⁶ 3s²3p⁶ 3d⁶

b. Cu⁺ : 1s²2s²2p⁶ 3s²3p⁶ 3d¹0

c. Zn²+ : 1s²2s²2p⁶ 3s²3p⁶ 3d¹0

d. Mn³+ : 1s²2s²2p⁶ 3s²3p⁶ 3d⁴

Answer 1

The complete electron configurations of the specified transition metal cations are as follows: Fe²⁺: [Ar]3d⁶, Cu⁺: [Ar]3d¹⁰, Zn²⁺: [Ar]3d¹⁰, Mn³⁺: [Ar]3d⁴. Transition metals typically lose their 4s electrons before the 3d when forming cations.

Step-by-step explanation:

The question requires identifying monatomic ions of transition elements in commercial products and writing their complete electron configurations. Here is the correct electron configuration for the provided transition metal cations:

• Fe2+: 1s22s22p63s23p63d6
• Cu+: 1s22s22p63s23p63d10
• Zn2+: 1s22s22p63s23p63d10
• Mn3+: 1s22s22p63s23p63d4

It is important to note that for transition metal cations, the 4s electrons are lost before the 3d electrons.