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What is the modern periodic table based on?
The modern periodic table is based on the atomic number of elements, which is the number of protons in the nucleus of an atom. Elements are arranged in order of increasing atomic number, which helps to group elements with similar properties in columns called groups or families.
What is the similarities in the modern periodic table and Mendeleev's table?
They have simliar properties and same elements although later on more elements were added to the modern periodic table.=Both periodic tables have elements grouped by similar properties. Mendeleev's periodic table had elements arranged in order of increasing atomic mass in columns with similar properties. While many of the elements are in order of atomic mass on the modern periodic table, some are not, as the modern table has elements arranged in order of increasing atomic number.=
Which statement about the development of the periodic table is true?
The periodic table was developed by Dmitri Mendeleev in 1869. Mendeleev organized the elements by their atomic mass and observed that elements with similar properties occurred at regular intervals. This arrangement formed the basis for the modern periodic table.
Which group contains only representative elements?
Representative elements, also known as main group elements, include groups 1, 2, and 13-18 on the periodic table. Group 1 contains alkali metals, group 2 contains alkaline earth metals, and groups 13-18 contain p-block elements. These groups are called representative elements because they display a wide range of chemical properties.
Who developed your modern periodic table in 1869?
Dmitri Mendeleev is credited with developing the modern periodic table in 1869. He arranged the elements based on their atomic mass and chemical properties, predicting the properties of undiscovered elements. Mendeleev's table laid the foundation for the periodic table we use today.
The modern periodic table of elements contains main groups.?
18
The modern periodic table of elements contains whatmain groups?
There are 18 main groups in the modern periodic table of elements.
The modern periodic table of elements contains 18?
groups
What is found in group 3 and period 6 of the modern periodic table?
Group 3 and period 6 of the modern periodic table contains elements from the lanthanide series, also known as the rare earth elements. These elements are characterized by their similar properties and placement below the main body of the periodic table.
How many elements are in the modern periodic table?
The Periodic Table has 118 elements and counting...
How does the modern periodic arrange the elements?
The modern Periodic Table arranges elements based on properties. These properties include valence electrons of the elements and density for example.
What best describes the modern periodic table?
Periodic table of elements.
What family contains neon helium xenon?
All of these elements belong to the noble gas family or group 18 on the modern periodic table
How are the elements in the modern periodic arranged?
The elements are ordered by their mass number.
How many elements are in included in the modern periodic table?
112 elements are known, with the existence of addition 6 elements being tentatively proposed.
How many elements are included on the modern periodic table?
There are 117 elements on the periodic table, however, there is one blank spot that lies on the periodic table of elements, it has the atomic number of 117. If it were discovered, there would be 118 elements on the periodic table of elements.
What are the order of elements on the periodic table based on?
the elements in the modern periodic table are arrange in the increasing order of their atomic numbers.
