Are alkaline earth metals good or poor conductors?

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.

How are some alkaline earth metals useful?

Uses of Alkaline Earth Metals: Radium is used for the treatment of cancer. Calcium is used in the extraction of different elements. Barium is used in removing air from vacuum tubes. Calcium is used to make calcium carbonate which is used to make different products like chalk, marble, limestone etc.

Are alkaline earth metals strong?

All alkaline earths are silvery-gray metals which are ductile and relatively soft. However, the following table shows that they are much denser than the group IA metals, and their melting points are significantly higher. They are also harder than the alkali metals.

Which alkaline earth metal is most positive?

Moving down the group in alkaline earth metals the atomic size or the radii increases as the shells increases. So the effective nuclear charge decreases and the outer electron can be lost by the atom easily. Barium can loose electron easily and highly electropositive in character.

What are good conductors?

Most metals are considered to be good conductors of electrical current. Copper is just one of the more popular materials that is used for conductors. Other materials that are sometimes used as conductors are silver, gold, and aluminum.

Why alkali and alkaline earth metals are the most reactive elements of the periodic table?

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 alkaline earth metals are the second most active metals?

Like the Group 1A elements, the alkaline earth metals are too reactive to be found in nature in their elemental form. The alkaline earth metals have two valence electrons in their highest-energy orbitals (ns2). They are smaller than the alkali metals of the same period, and therefore have higher ionization energies.

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.

Why are alkaline earth metals reactive?

Why are alkaline earth metals called so?

The name comes from the fact that the oxides of these metals produced basic solutions when dissolved in water, and they remained solids at the temperatures available to the ancient alchemists. Like the Group 1A elements, the alkaline earth metals are too reactive to be found in nature in their elemental form.