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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. The elements in a group have similar physical or chemical characteristics of the outermost electron ...
The periodic table is a tabular arrangement of the chemical elements, organized by their atomic number, electron configuration, and chemical properties. It is a useful tool for understanding the patterns and trends of the elements and their interactions. Learn more about the history, structure, and significance of the periodic table on Wikipedia.
The periodic table of the chemical elements. The columns represent the groups. Groups 1, 2 and 13 to 18 constitute the main group. Sometimes groups 3 and 12, as well as the lanthanides and actinides (the two rows at the bottom), are also included in the main group.
Atomic number color: black=solid. 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.
1992 — Magarshak & Malinsky's three-dimensional periodic table: Quantum mechanics-based table with group 3 as Sc-Y-La-Ac [104] 2003 — Graphic representations of the periodic system: As a building [105] 2003 — Two-amphitheatre pyramid periodic table [106] 2011 — Aldersley 3D periodic table: As four apartments [107]
Nickel 28 Ni 58.693. Copper 29 Cu 63.546. Zinc 30 Zn 65.38. Gallium 31 Ga 69.723. Germanium 32 Ge 72.630. Arsenic 33 As 74.922. Selenium 34 Se 78.971. Bromine 35 Br 79.904. Krypton 36 Kr 83.798.
A block of the periodic table is a set of elements unified by the atomic orbitals their valence electrons or vacancies lie in. [ 1] The term seems to have been first used by Charles Janet. [ 2] Each block is named after its characteristic orbital: s-block, p-block, d-block, f-block and g-block . The block names (s, p, d, and f) are derived from ...
The alkaline earth metals are six chemical elements in group 2 of the periodic table. They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). [ 1] The elements have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure.