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• #Alkali metals periodic table full#

They are malleable (bendable) and sometimes soft enough to be cut with a dull knife. Their light weight and physical properties separate them from other metals. You will find that the alkali group is shiny and light in weight. Often, in chemistry, characteristics are assigned by the way elements look. In fact, when you put some of these pure elements in water (H 2O), they can cause huge explosions. An increased desire to bond means you are more reactive.

#Alkali metals periodic table full#

When you are that close to having a full shell, you want to bond with other elements and lose that electron. That's one electron away from being happy (full shells). Why? They all have one electrons in their outer shell. As with all families, these elements share traits. Now that we've covered that exception, the members of the family include: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs) and francium (Fr). While hydrogen sits in Group I, it is NOT an alkali metal. Hydrogen is a very special element of the periodic table and doesn't belong to any family. When we told you about families, we said that they were groups of elements that react in similar ways. Who's in the family? Starting at the top we find hydrogen (H). The "one" in this case refers to having one electron in the outermost orbital. When we talk about the groups of the periodic table, scientists use Roman numerals when they write them out. That far left column is Group One (Group I). They are a very different family, even though they have a similar name. You should remember that there is a separate group called the alkaline earth metals in Group Two. They are also known as the alkaline metals. When looking for families, the first one you will find is the alkali metal family of elements. Except for hydrogen, the elements in Group 1A are. Group 1A is the first (leftmost) column in the periodic table.

Let's go to the left side of the periodic table. Step 1: Check Group 1A in the periodic table.