Periodic table Alkaline earth metals definition chemistry

(These are also discussed in separate essays, which include reference to 'orphans,' or elements that do not belong to one of the families mentioned above.)

(All of these are covered in separate essays within this book.) In addition, there are several larger categories with regard to shared traits that often cross family lines thus all elements are classified either as metals, metalloids, and nonmetals. These include (in addition to the alkaline earth metals and the alkali metals) the transition metals, halogens, noble gases, lanthanides, and actinides. The expression 'families of elements' refers to groups of elements on the periodic table that share certain characteristics. Radium, on the other hand, is rarely used outside of laboratories, in large part because its radioactive qualities pose a hazard to human life. Barium and beryllium have numerous specialized applications in areas from jewelry to medicine, while strontium is primarily used in fireworks. In fact, both are significant components in the metabolism of living things -including the human body. Magnesium and calcium have a number of uses, ranging from building and other structural applications to dietary supplements. Also, like the alkali metals, or indeed any other family on the periodic table, not all members of the alkali metal family are created equally in terms of their abundance on Earth or their usefulness to human life. This puts them beside the alkali metals in Group 1, and as their names suggest, the two families share a number of characteristics, most notably their high reactivity. And so those are the general properties of alkaline from the middle.The six alkaline earth metals -beryllium, magnesium, calcium, strontium, barium, and radium -comprise Group 2 on the periodic table of elements. And so it will create salts, um, and things of that sort. Besides that, it has very similar properties to the alkali metals. But these are still some degree good conductors just because of the fact that it will produce thes carry ons and these tend to be solids like any other metal and in terms of the way that it looks in is very lustrous on DSO that is again very characteristic of metals in general and notches alkaline earth metals on. On dso, you need thio moved to electrons to create these table Chiron, whereas for your bun, you only lose one. But when you're comparing it to group on, it may not be as conductive just because it is a die violent species. Um, began good conductors, electricity and heat. And so where these types of metals you can expect that they have good conductivity in terms of electricity, and he mainly because there are valence electrons that can be easily removed to some extent to create condoms. And so if we were to write this out, radium would have the greatest reactivity, followed by Berry, um, Shantia, calcium, magnesium and ruin.

And so, um, when you go down the group again, your reactivity increases. And if you have electrons that are easily removed, that means that it can easily react Thio something else that wants to gain an electron. So it is actually pretty easy to remove this electron from the metal. And so that means that the protons have a weaker poll on these feelings. And one important thing to note is that when you move down the group, you actually see higher reactivity, mainly because if you go down the group, that means you have more electrons occupying the higher energy levels. But that doesn't mean that it is not completely reactive, mainly because it can easily lose thes two electrons to achieve the noble gas configuration. And so when you're comparing, be reactivity between the alkaline earth metal ercis, the alkali metals thes actually are not as reactive and cities air not as reactive a group one So the alkali metals. And so you can imagine that because this is filled, this is also stable. And the character signatures of the group to elements include the fact that it has a general electron configuration of some energy level with two electrons in the atomic problem. So group, too, that are called Ugg line Earth metals and so alkaline Earth metals are located in this section of the periodic table. So under the category of medals, we also have a specific group.

Periodic table Alkaline earth metals definition chemistry