The chemical properties of the elements are chiefly due to the number and distribution of the outer electrons that they have.
Argon is chemically inert due to the presence of completely filled orbitals. It does not react with other elements.
The elements in group 1a to 8a called representative elements. This is due to the fact that they portray as wide array of chemical and physical properties.
The reason for similar properties among the elements is due to the resemblance in the electronic configuration of all the elements of a family. For example :- Each element of Alkali metals family has 1 electron in their outermost shell. Hence, they all have similar properties
Elements in the same group have similar properties because they have the same number of electrons in their outermost shell.
Due to the chemical makeup of the elements, at it's melting point it becomes highly malleable.
Argon is chemically inert due to the presence of completely filled orbitals. It does not react with other elements.
The elements in group 1a to 8a called representative elements. This is due to the fact that they portray as wide array of chemical and physical properties.
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In mild steel there are negligeble alloying elements which has no effect on physical & chemical properties of MS. On the other hand due to alloying elements [ Ni & Cr ] oxidation is avoided.
Elements in the same column on the periodic table have similar chemical reactivity because they have the same outer electron configuration and it is the electron structure that determines an elements properties.
The reason for similar properties among the elements is due to the resemblance in the electronic configuration of all the elements of a family. For example :- Each element of Alkali metals family has 1 electron in their outermost shell. Hence, they all have similar properties
Elements in the same group have similar properties because they have the same number of electrons in their outermost shell.
They have similar physical and chemical properties. This is due to the fact that they have the same number of valence electrons, just in subsequently higher energy levels.
An elements property can be best predicted from the group it is in the Periodic Table. Groups (the columns of the tables) of elements have similar properties due to their similar electron configuration of the valence shell.
Classification of elements involves arranging elements into groups based on their shared properties like atomic number, electron configuration, and chemical behavior. Merits of classification include easier understanding of properties and trends among elements, aiding in prediction of unknown properties, and providing a systematic way to study materials. Disadvantages include limitations in accommodating new discoveries and challenges in categorizing certain elements due to their unique characteristics.
Mendleef arranged the elements in the increasing order of their atomic masses due to which elements having same properties were placed in the same group and there were few exceptions.
Si and Ge have similar chemical properties due to how close they are on the periodic table. Silicon and GermaniumÊare both metalloids.