Learning goal 2: Recall how many valence electrons are possessed by all of the elements in Group 2 of the periodic table, 01236

Overview of Group 2 Elements

Group 2 of the periodic table is also known as the alkaline earth metals. This group includes the following elements: Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), and Radium (Ra).

Valence Electrons in Group 2

1. Beryllium (Be): 2 valence electrons
2. Magnesium (Mg): 2 valence electrons
3. Calcium (Ca): 2 valence electrons
4. Strontium (Sr): 2 valence electrons
5. Barium (Ba): 2 valence electrons
6. Radium (Ra): 2 valence electrons

Summary of Findings

All the elements in Group 2 possess 2 valence electrons. This consistent pattern is due to their electron configurations, which reveal that the outermost shell of these alkaline earth metals contains two electrons.

Conclusion

In conclusion, every element in Group 2 has 2 valence electrons, which contributes to their similar chemical properties and reactivity.