Introduction
Group 2 accommodates tender, silver metals which are much less metallic in character than the Group 1 parts. Though many traits are frequent all through the group, the heavier metals resembling Ca, Sr, Ba, and Ra are nearly as reactive because the Group 1 Alkali Metals. All the weather in Group 2 have two electrons of their valence shells, giving them an oxidation state of +2. This permits the metals to simply lose electrons, which will increase their stability and permits them to type compounds through ionic bonds. The next diagram exhibits the situation of those metals within the Periodic Desk:
The desk beneath offers an in depth account of the descriptive chemistry of every of the person parts. Discover a rise down the group in atomic quantity, mass, and atomic radius, and a lower down the group for ionization vitality. These frequent periodic traits are constant throughout the entire periodic desk.
Alkaline Earth Metallic Reactions
The reactions of the alkaline earth metals differ from these of the Group 1 metals. Radium is radioactive and isn’t thought-about on this part.
[ Ca_{(s)} + H_{2, (g)} rightarrow CaH_{2, (s)} ]
[ Sr_{(s)} + O_{2 (g)} rightarrow SrO_{2, (s)}]
[ 3Mg_{(s)} + N_{(g)} rightarrow Mg_3N_{2 (s)} ]
[ Mg_{(s)} + Cl_{2(g)} rightarrow MgCl_{2(s)} ]
[ Ba_{(s)} + 2H_2O_{(l)} rightarrow Ba(OH)_{2(aq)} + H_{2(g)} ]
Properties of Particular person Alkaline Earth Metals
References
Issues – “magnesium group”
[Be_{(s)}+F_2 rightarrow BeF]
Solutions