Chapter 21, Problem 21.31QP

Interpretation Introduction

Interpretation:

Under what conditions do sodium and potassium form ${\text{Na}}^{\text{-}}\text{and}{\text{K}}^{\text{-}}$ ions need to be explained.

Concept introduction:

Sodium ${\text{Na}}^{\text{-}}$ion

• The element sodium is denoted by the formula is $\text{Na}$.
• The atomic number of sodium is 11.
• Sodium metal was first identified and isolated by electrolysis process by Humphry Davy in 1807.
• Sodium gets 6^th place in the list of most abundant element in earth’s crust.
• Sodium by gaining one electron it will form ${\text{Na}}^{\text{-}}$.

Potassium ${\text{K}}^{\text{-}}$ion

• The element sodium is denoted by the formula is $\text{K}$.
• The atomic number of sodium is 9.
• Potassium gets 17^th place in the list of most abundant element in earth’s crust.
• Potassium by gaining one electron it will form ${\text{K}}^{\text{-}}$.