Respuesta :
The correct answer would be the last option. The property that is common to all group 2 elements is that they tend to form ionic bonds by losing electrons making these atoms positive charge. They are called cations. These elements are beryllium, magnesium, calcium, strontium, and radium.
Answer: Option (d) is the correct answer.
Explanation:
Group 2 elements are also known as alkaline earth metals and they are rich in electrons.
For example, calcium is a group 2 element with atomic number 20 and its electronic configuration is 2, 8, 2. In order to gain stability, calcium loses to electrons and becomes [tex]Ca^{2+}[/tex] ion.
Similarly, all the elements of group 2 donates electrons in order to form ionic bonds.
Hence, we can conclude that all group 2 elements have in common that they tend to form ionic bonds by losing electrons.
