What are some general characteristics of the alkaline earth metals family?
The alkaline-earth elements are highly metallic and are good conductors of electricity. They have a gray-white lustre when freshly cut but tarnish readily in air, particularly the heavier members of the group. Beryllium is sufficiently hard to scratch glass, but barium is only slightly harder than lead.
What are the characteristic properties of alkaline earth metals?
Summary of Common Alkaline Earth Properties
- Two electrons in the outer shell and a full outer electron s shell.
- Low electron affinities.
- Low electronegativities.
- Relatively low densities.
- Relatively low melting points and boiling points, as far as metals are concerned.
- Typically malleable and ductile.
What are the characteristics of the alkali family?
The alkali metals have the high thermal and electrical conductivity, lustre, ductility, and malleability that are characteristic of metals. Each alkali metal atom has a single electron in its outermost shell.
Which statement is true about the alkaline earth metal family?
Q. Which statement is true about the alkaline earth metal family? They have 2 valence electrons.
What are alkaline earth metals explain?
Definition of alkaline earth metal : any of the divalent strongly basic metals of group II of the periodic table comprising beryllium, magnesium, calcium, strontium, barium, and radium. — called also alkaline earth.
What is the alkaline earth family?
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).
Why are alkaline earth metals very reactive?
Alkaline Earth metals are very reactive because they readily give up their two valence electrons to achieve a full outer energy level, which is the most stable arrangement of electrons. Reactivity increases from the top to the bottom of the group.
Why are elements from the alkaline earth family grouped together?
The elements in 1A are all very reactive and form compounds in the same ratios with similar properties with other elements. Because of their similarities in their chemical properties, Mendeleev put these elements into the same group. Group 1A is also known as the alkali metals.
What is the difference between alkali and alkaline earth metals?
The main difference between alkali metals and alkaline earth metals is that alkali metals have one valence electron in the outermost orbit whereas alkaline earth metals have two valence electrons in the outermost orbit.
Which of the following properties is more applicable to alkaline earth metals compared with alkali metals?
Alkaline earths have larger lattice energies than alkali metals due to small size and high charge. Hence, alkaline earth metal hydroxides have lower solubility than alkali metals. Was this answer helpful?
What is the main difference between alkali metals and alkaline earth metals?