Table of Contents
What do group 2 in the periodic table have in common?
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. These elements are beryllium, magnesium, calcium, strontium, and radium.
Why does group 2 have similar properties?
Being in group 2 means they all have two valence electrons, or the electrons that are furthest away from the nucleus. Having two valence electrons makes this group reactive, meaning the elements want to combine with other elements, not just water. Other characteristics most share include being soft and silvery.
What is the second element in Group 2?
alkaline-earth metal, any of the six chemical elements that comprise Group 2 (IIa) of the periodic table. The elements are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).
What does the same group have in common?
Elements in the same group have the same number of valence electrons, and therefore have same levels of reactivity.
Why do group 2 elements never form m3+?
Like the alkali metals, the alkaline earth metals are so reactive that they are never found in elemental form in nature. Because they form +2 ions that have very negative reduction potentials, large amounts of energy are needed to isolate them from their ores.
Which element in group 2 is most likely to lose an electron?
Answer: In particular, cesium (Cs) can give up its valence electron more easily than can lithium (Li). The same trend also is seen among the Group 2 elements (the alkaline-earth metals); the farther down in the group the metal resides, the more likely it is to lose an electron.
What are the uses of group 2 elements?
Some important uses of alkaline earth metals are:
- Be is used in the manufacture of alloys. Cu-Be alloys are used in the preparation of high strength springs.
- Mg is used to prepare alloys with Al, Zn, Mn and Sn.
- Ca is used in the extraction of metals from their oxide.
- Radium salt are used in radiotherapy.