These are called alkali earth metals. Look it up for explanation as to why.
base in my experience.... because of the gravity of the earth...
Both Group IA and IIA elements have low ionization energies because they have one or two valence electrons that are easily removed. Group IA elements have a lower ionization energy compared to Group IIA elements due to the increased distance from the nucleus and increased shielding effect in Group IA.
The elements in Group IIA on the periodic table are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). These elements are alkaline earth metals and share similar chemical properties.
Magnesium belongs to Group 2 (or Group IIA) in the periodic table. It is part of the alkaline earth metals group, which includes elements such as beryllium, calcium, strontium, and barium.
The ONLY liquid elements (at STP) areMercury, Hg, in group 12Bromine, Br, in group 17Notations like ia, iia, ib or iib are not commonly in use, maybe in older books or periodic tables.
There is none. All of the elements in group/family in group IIA/2 are solids at room temperature.
base in my experience.... because of the gravity of the earth...
The electron affinity values of Group IIA (alkaline earth metals) are generally lower than those of Group IIA (halogens) due to their electron configurations. Group IIA elements have a filled s subshell, making it energetically unfavorable to gain an additional electron, as they prefer to lose electrons to achieve a stable noble gas configuration. In contrast, Group IIA elements have higher electron affinity values because they have a strong tendency to gain an electron to complete their p subshell, leading to greater stability. Thus, the difference in electron affinity reflects the distinct chemical behaviors and stability preferences of these groups.
Both Group IA and IIA elements have low ionization energies because they have one or two valence electrons that are easily removed. Group IA elements have a lower ionization energy compared to Group IIA elements due to the increased distance from the nucleus and increased shielding effect in Group IA.
The elements in Group IIA on the periodic table are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). These elements are alkaline earth metals and share similar chemical properties.
Group IIA: beryllium, magnesium, calcium, strontium, barium and radium.
The cation with 18 electrons and in group IIA is calcium (Ca^2+). Calcium loses its two valence electrons to achieve a stable electron configuration similar to a noble gas.
The atomic size increases as you move down the Group IIA elements from Be to Ra. This trend is due to the increase in the number of electron shells as you move down the group, leading to greater atomic radius.
The ionization energy drops from group IIA (alkaline earth metals) to group IIIA (boron group) due to the increasing atomic size and the presence of additional electron shells. In group IIA, the outermost electrons are in the same shell and experience a strong effective nuclear charge, making them harder to remove. However, in group IIIA, the introduction of a new electron in a higher energy level results in increased electron shielding and a weaker attraction to the nucleus, thus lowering the ionization energy.
When an element in Group IIA (such as calcium or magnesium) reacts with an element in VIIA (such as fluorine or chlorine), they form ionic compounds. The Group IIA element will lose electrons to the Group VIIA element, creating ions with opposite charges that attract each other to form a stable compound. These ionic compounds are typically white solids at room temperature.
The charge for all elements in Group 2A is +2.
Calcium is an alkaline earth metal located in Group 2 (IIA) on the periodic table.