What is the family of 2A?
Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). They are harder and less reactive than the alkali metals of Group 1A.
What is Group 2A charge?
The alkali earth metals (group 2), such as, Mg or Sr lose two e-‘s to attain the configuration of Ne. Thus, the group 2 metals tend to have a +2 charge. On the other side of the periodic table elements gain electrons to resemble the next higher noble gas.
What is the name of 2A?
Alkaline earth metals
Alkaline earth metals make up group 2A on the periodic table.
How do IA and IIA differ from the other Group A elements?
Some of these groups have special names. The elements in group IA are called the alkali metals. The elements in group IIA are called the alkaline earth metals. The elements in group VIIA are called the halogens and the elements in group VIIIA are called the noble gases or the inert gases.
What are the 7 major families of the periodic table?
These families are alkali metals, alkaline earth metals, transition metals, post-transition metals, metalloids, halogens, noble metals, and noble gases. Many of these families belong to a single group on the periodic table.
Why does Group 2A have a 2+ charge?
The outermost valence shell of the element in group 2A (2) of the periodic table contains 2 electrons. The valence of the element in the Group 2A (2) of the periodic table is two. The charge on the ion after the loss of 2 valence electrons from the elements in group 2A (2) will be +2.
What happens when Group 2A form ions?
In this case elements located in group 2 will always lose electrons to become cations. Basically they will lose 2 electrons to form cations with charge of +2. Hence Group 2A elements form ions by losing two electrons.
Who are the members of halogen family?
The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).
Who is modern periodic table?
In 1869, Russian chemist Dmitri Mendeleev created the framework that became the modern periodic table, leaving gaps for elements that were yet to be discovered. While arranging the elements according to their atomic weight, if he found that they did not fit into the group he would rearrange them.
What is the difference between Group 1A and Group 2A metals?
They are harder metals than the Group 1A elements, but are soft and lightweight compared to many of the transition metals. Salts of the Group 2A metals are less soluble in water than those of Group 1A because of the higher charge densities on the 2+ cations; nevertheless, many Group 2A salts are at least moderately soluble.
What is Group 2A on the periodic table?
Group 2A — The Alkaline Earth Metals. Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).
What is a group 2A salt?
Some Group 2A salts bond strongly to water molecules, and crystallize as hydrates ; among these are Epsom salt, MgSO 4 ·7H 2 O, and gypsum, CaSO 4 ·2H 2 O. Beryllium (Be, Z=4). Beryllium is a silver-white, soft metal. Its name is derived from the Greek word for the mineral beryl, beryllo .