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Semimetals, also known as metalloids, share properties of both metals and nonmetals. Metallic in their appearance, they can be both bright and opaque with an easily modifiable shape but they are not g ...
The alkaline earths take their name from the one who received their oxides, "earths", which have alkaline properties. They are harder than alkali metals, have shine and are good electrical c ...
The other metals are located between transition metals and semimetals. Sometimes known as block metals or poor metals, they tend to be soft and have low melting points, in addition to having greater e ...
Nonmetals are bad conductors of electricity and heat. They are very weak, so they cannot stretch or become a sheet. They can be solids, liquids or gases, their melting and boiling points being depende ...
Currently, the periodic table is organized and subdivided into four blocks depending on the last orbital of the electronic configuration. These blocks are called:
Block s: in these elements the most ...
In the periodic table of the elements, each row of the table is called the period. The number of levels an atom has determines the period to which it belongs. The first period has only two elements, t ...
In the periodic table of the elements, each row of the table is called the period. The number of levels an atom has determines the period to which it belongs. The first period has only two elements, t ...
In the periodic table of the elements, each row of the table is called the period. The number of levels an atom has determines the period to which it belongs.
The periodic table of the elements is the ...
In the periodic table of the elements, each row of the table is called the period. The number of levels an atom has determines the period to which it belongs.
The periodic table of the elements is the ...
In the periodic table of the elements, each row of the table is called the period. The number of levels an atom has determines the period to which it belongs. The fourth and fifth periods are eighteen ...
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