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Group 3 is the first group of transition metals in the periodic table. This group is closely related to the rare-earth elements. It contains the four elements scandium (Sc), yttrium (Y), lutetium (Lu), and lawrencium (Lr). The group is also called the scandium group or scandium family after its lightest member.
In the periodic table of the elements, each column is a group. In chemistry, a group (also known as a family) [1] is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table; the 14 f-block columns, between groups 2 and 3, are not numbered.
A period 3 element is one of the chemical elements in the third row (or period) of the periodic table of the chemical elements.The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behavior of the elements as their atomic number increases: a new row is begun when chemical behavior begins to repeat, meaning that elements with similar behavior fall into ...
In the periodic table, the transition metals are present in ten groups (3 to 12). The elements in group 3 have an ns 2 (n − 1)d 1 configuration, except for lawrencium (Lr): its 7s 2 7p 1 configuration exceptionally does not fill the 6d orbitals at all.
The properties of scandium compounds are intermediate between those of aluminium and yttrium. A diagonal relationship exists between the behavior of magnesium and scandium, just as there is between beryllium and aluminium. In the chemical compounds of the elements in group 3, the predominant oxidation state is +3.
The first periodic table to become generally accepted was that of the Russian chemist Dmitri Mendeleev in 1869; he formulated the periodic law as a dependence of chemical properties on atomic mass. As not all elements were then known, there were gaps in his periodic table, and Mendeleev successfully used the periodic law to predict some ...
The definitive visualisation of all 118 elements is the periodic table of the elements, ... it can also be organized by other properties, ... [3] Group Period Block ...
In the periodic table Group III formerly included these: Group 13 elements : boron (B), aluminium (Al), gallium (Ga), indium (In), thallium (Tl). Group 3 elements : scandium (Sc) and yttrium (Y) plus the lanthanide and actinide series elements.