what group is element 34 in 119 rowsList of elements of the periodic table by group and period including the chemical
Selenium is a chemical element it has the symbol Se and atomic number 34 It has various physical appearances including a brick red powder a vitreous black solid and a grey metallic looking form It seldom occurs in this elemental state or as pure ore compounds in Earth s crust Selenium from Ancient Greek sel n moon was discovered in 1817 by J ns Jacob Berzelius wh Element number 34 selenium was discovered by Swedish chemist Jons Jacob Berzelius in 1817 Selenium is a non metal and can be compared chemically to its other non
what group is element 34 in
what group is element 34 in
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Selenium is a chemical element with atomic number 34 which means there are 34 protons and 34 electrons in the atomic structure The chemical symbol for Selenium is Se The atom consist of a small but massive 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
Selenium is a chemical element with the symbol Se and atomic number 34 Selenium is the 34 element on the periodic table It is located in group 16 and period 4 in the modern periodic table The vertical columns of the periodic table are called groups According to the IUPAC system of naming groups there are 18 groups with the group number ranging from 1 to 18 The elements in each group have the same number of
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For example elements in group 1 have 1 valence electron elements in groups 3 12 have a variable number of valence electrons and elements in group 17 have 7 valence electrons The lanthanides and This is a list of elements by atomic number with symbol 262
Columns groups are determined by the electron configuration of the atom elements with the same number of electrons in a particular subshell fall into the same columns e g oxygen The groups of the periodic table are displayed as vertical columns numbered from 1 to 18 The elements in a group have very similar chemical properties which arise from the
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what group is element 34 in - The vertical columns are called groups elements in the same group are similar to each other the metals are on the left and the non metals are on the right