What are the 7 alkali metals?
They are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).
What are the four 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 are alkali earth metals 10?
The alkaline earth metals are the elements that correspond to group 2 of the modern periodic table. This group of elements includes beryllium, magnesium, calcium, strontium, barium, and radium. The elements of this group are quite similar in their physical and chemical properties.
Where are the alkaline earth metals?
The alkaline earth metals are the elements in the second group of the periodic table, starting with beryllium and ending with radium. They are all silvery-white, shiny metals that are fairly reactive, although not as reactive as the alkali metals.
Is ar a alkali metal?
Group 1A (or IA) of the periodic table are the alkali metals: hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr)….Group 1A — The Alkali Metals.
| 4A | Si |
|---|---|
| 5A | P |
| 6A | S |
| 7A | Cl |
| 8A | Ar |
Is lithium alkaline earth metal?
The elements in group one of the periodic table (with the exception of hydrogen – see below) are known as the alkali metals because they form alkaline solutions when they react with water. This group includes the elements lithium, sodium, potassium, rubidium, caesium and francium.
What are alkali metals and alkaline earth metals Class 11?
Since the atoms of the alkaline earth metals have smaller size and higher ionization enthalpies as compared to corresponding alkali metals, their tendency to lose valence electrons is lesser than those of alkali metals. Alkaline earth metals have less electropositive or metallic character as compared to alkali metals.
What are the 6 alkaline earth metals?
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).
Why are they called alkali earth metals?
The alkaline earth metals are named after the alkaline earths whose old-fashioned names were beryllia, magnesia, lime, strontia, and baryta, after their oxides. When mixed with water, these oxides are simple (alkaline). Beryllium, magnesium, calcium, strontium, barium and radium are the elements in Group 2.