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Following a classification according to the bonding and ionization properties of the elements, the elements of the periodic table can be classified as:
Metals
Semimetals
No metals
Noble gases
Th ...
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 fourth and fifth periods are eighteen ...
The transition metals are located in the central part of the periodic table. The name "transition" comes from a characteristic that these elements have to be able to be stable by themselves ...
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, w ...
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 ...
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 ...
Click on the different eons and drag them to the right places.Enlarge or reduce the image with the zoom and adjust its size to the screen of your device. You can also act on the image and drag it to c ...
Unfold the list and select these authors from the corresponding classicist and baroque French literature.Enlarge or reduce the image with the zoom and adjust its size to the screen of your device. You ...
Unfold the list and select the relevant events of this century that apply.Enlarge or reduce the image with the zoom and adjust its size to the screen of your device. You can also click on the image an ...
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