Chapter U1.19, Problem 10E

Interpretation Introduction

Interpretation:

The charge on an arsenic ion needs to be determined.

Concept introduction:

Arsenic (As) is an element of p block with atomic number 33. It is from the same group that of nitrogen.

Answer to Problem 10E

An arsenic ion can have -3 charge.

Explanation of Solution

The outermost electronic configuration of As is [Ar]3d¹⁰4s²4p³. Thus, number of valence(4^th orbit) electrons is 5. So arsenic can accept 3 electrons to form ion and to get nearest noble gas configuration. Thus, it will form As³ - ion.

Conclusion

Arsenic ion will have -3 charge. The symbol will be As-3.