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Group 1 elements have an oxidation number of +1, group 2 elements have an oxidation number of +2, group 17 elements have an oxidation number of -1, and group 18 elements (noble gases) have zero oxidation number since they are chemically unreactive.

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Coulmns on a periodic table are called?

The vertical columns of the periodic table are called groups. The horizontal rows of the periodic table are called periods. The number of electron shells an atom has corresponds to the number period of the periodic table it is located in. The oxidation number or number of valence electrons an atom is depicted by the group it is in. For example: Calcium (Ca) has an oxidation number of +2 and has 2 valence electrons( outermost electrons) which means it belongs to group 2 of the periodic table called the "alkali earth metals".


How are the elements arranged?

Elements are arranged on the periodic table based on their atomic number, which is the number of protons in their nucleus. This arrangement groups elements with similar properties in columns called groups or families, while elements in the same period have the same number of electron shells.


What is the oxidation number for Li?

Every element on the Periodic Table has an OXIDATION NUMBER of zero, including Lithium.


What are the relationships between the group number on the periodic table?

The periodic table of Mendeleev has 18 groups.


What is the element with the lowest oxidation state on the periodic table?

The element with the lowest oxidation state on the periodic table is Francium.


What are the most common oxidation valence number in periodic table?

The most common oxidation states in the periodic table are +1, +2, +3, -1, -2, -3. These oxidation states are frequently observed in elements based on their position in the periodic table and their electron configuration.


Where do you find groups on a periodic table?

groups are the vertical columns on the periodic table


What are groups in the periodic table?

Groups in the periodic table are vertical columns that contain elements with similar chemical properties. Elements in the same group have the same number of valence electrons, which determines their reactivity and chemical behavior. There are 18 groups in the periodic table.


How many grops are there in the periodic table?

Groups of the Periodic Table are defined as vertical colums. There are 18 groups in the periodic table.


How many periods and groups are there in the periodic table?

Modern periodic table has 7 periods and 18 groups.


How elements arranged in the periodic table?

Elements are arranged on the Periodic Table in the order of the atomic number, in groups and periods.


What would be the oxidation number of a element in group sixteen of the periodic table?

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