Chapter 2, Problem 116GQ

Interpretation Introduction

Interpretation:

The given question related with strontium atom ($Sr$ ) should be answered on the basis of electrons and electronic configuration.

Concept introduction:

• When the number of electron and proton in the atom is same the atom will be electrically neutral. Therefore in a neutral atom the number electrons are equal to its atomic number.
• The loss or gain of electrons from an atom forms monoatomic ion in order to achieve the stability (noble gas electronic configuration, etc.)
• Strontium has 38 electrons.
• The charge of Strontium ion ($S{r}^{2+}$) is $\text{+2}$.