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1. chem.libretexts.org › Courses › Valley_City_State2.3: Families and Periods of the Periodic Table - Chemistry ...

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   Vocabulary. Group (family): A vertical column in the periodic table. Alkali metals: Group 1A of the periodic table. Alkaline earth metals: Group 2A of the periodic table. Halogens: Group 7A of the periodic table. Noble gases: Group 8A of the periodic table. Transition elements: Groups 3 to 12 of the periodic table.

2. www.livescience.com › 28507-element-groupsHow the Periodic Table groups the elements | Live Science

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   Dec 13, 2021 · The columns of the table represent groups, or families, of elements. The elements in a group often look and behave similarly, because they have the same number of electrons in their outermost ...

3. www.creative-chemistry.org.uk › gcse › keyideasDevelopment of the periodic table - Creative Chemistry

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   Newlands' octaves. An English chemist called John Newlands developed a table during the 1860s. Like Döbereiner, he placed the elements in order of increasing atomic weight. By 1865 his table showed the known elements arranged into eight columns, each containing seven elements.

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4. periodictableguide.com › periodic-table-groupsPeriodic table Groups Explained !! (With 1-18 Group Names)

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   Sep 1, 2024 · There are total 18 different groups in Periodic table. Group 1: Alkali metals group (hydrogen not included) Group 2: Alkaline earth metals group. Group 3-12: Transition and Inner transition metals group. Group 13: Boron group. Group 14: Carbon group. Group 15: Nitrogen group.

5. chem.libretexts.org › Courses › Heartland_Community2.2: The Periodic Table - Chemistry ... - Chemistry LibreTexts

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   • Elemental Names and Symbols. Each box on the periodic table represents a single element. An elemental symbol is always included within each box, in order to indicate which element is located in that position.
   • Atomic Number. Elements are listed in order of increasing atomic number, which as the number of protons contained within an atom of that element. (The proton is an example of a subatomic particle and will be discussed in greater detail in the following section.)
   • Periods. A period is a horizontal (left-to-right) row on the periodic table. Each period is given a numerical value, beginning with "1," which is assigned to the top row.
   • Groups. A group is a vertical (top-to-bottom) column on the periodic table. Each group is given a numerical value, beginning with "1," which is assigned to the left-most column on the periodic table.

6. www.bbc.co.uk › bitesize › guidesThe periodic table - AQA Metals and non-metals in the ... - BBC

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   Atoms of group 1 elements have one electron in their outer shell, and atoms of group 2 elements have two electrons in their outer shell. Elements in groups 6, 7 and 0 are non-metals.

7. People also ask

   How did Mendeleev arrange the periodic table?

   • Remember, Mendeleev arranged the table so that elements with the most similar properties were in the same group on the periodic table. It is important to recognize a couple of other important groups on the periodic table by their group name. Group 7A (or 17) elements are also called halogens. This group contains very reactive nonmetal elements.

   2.3: Families and Periods of the Periodic Table

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   Which element is a group 15 on the periodic table?

   • Nitrogen group is the group 15 on the periodic table. The elements included in Nitrogen group are; Also see: Complete information on Nitrogen element. Oxygen group is the group 16 on the periodic table. The elements included in Oxygen group are;

   Periodic table Groups Explained !! (With 1-18 Group Names)

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   What are the elements found in groups 3-12?

   • The elements found in Groups 3-12 are known as the transition metal elements (or simply as transition metals) because of their location on the periodic table. In order to move from Group 2A to Group 3A, an individual had to move (or transition) through columns 3 through 12.

   2.2: The Periodic Table - Chemistry LibreTexts

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   Why did Mendeleev put the elements in Group 1A in the same group?

   • The elements in 1A are all very reactive and form compounds in the same ratios with similar properties with other elements. Because of their similarities in their chemical properties, Mendeleev put these elements into the same group. Group 1A is also known as the alkali metals.

   2.3: Families and Periods of the Periodic Table

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   Why is Group 2A called alkaline earth metals?

   • Group 2A is also called the alkaline earth metals. Once again, because of their similarities in electron configurations, these elements have similar properties to each other. The same pattern is true of other groups on the periodic table.

   2.3: Families and Periods of the Periodic Table

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   How many elements are in a group?

   • These groups contain more than three elements. An English chemist called John Newlands developed a table during the 1860s. Like Döbereiner, he placed the elements in order of increasing atomic weight. By 1865 his table showed the known elements arranged into eight columns, each containing seven elements.

   Development of the periodic table - Creative Chemistry

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8. www.chemistrylearner.com › periodic-table-groupsPeriodic Table: Periods, Groups, and Families - Chemistry Learner

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   Periods. Periods are horizontal rows of the periodic table. They represent elements having the same number of electron shells or energy levels. However, each element has one more proton than its preceding element. Thus, the periods are arranged according to the increasing atomic number of the elements. There are seven periods, with the period ...