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This extremely important discovery was made by Russian chemist Dmitry Mendeleyev somewhere in the late 1800's. He suggested arranging the known elements by atomic weight (or mass) - which would, by extension, mean by atomic number - in order to predict the properties of as yet undiscovered elements.
His system worked perfectly and enabled other scientists to fill in the blanks and complete what is known as the Periodic Table of Elements.
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What is the basis of arranging the elements in the periodic table?
Elements in the periodic table are arranged based on their atomic number, which represents the number of protons in the nucleus of an atom. This arrangement helps to group elements with similar properties together in periods and groups.
Method of arranging elements into related groups was invented by Dimitri Mendeleyev?
Dmitri Mendeleev is credited with creating the periodic table, a method for arranging elements based on their properties and atomic number. This arrangement allows for predicting the properties of elements that had not yet been discovered at the time.
No two elements will have the what atomic number?
No two elements will have the same atomic number because the atomic number of an element is determined by the number of protons in the nucleus of an atom. Since each element has a unique number of protons, each element will have a unique atomic number.
How is the periodic table designed?
The periodic table is designed based on the atomic number (number of protons in the nucleus) and the electron configuration of the elements. Elements are arranged in rows and columns based on their similarities in properties. This organization helps predict the behavior and properties of elements.
How was the atomic number and the atomic mass determined?
The atomic number of an element is determined by the number of protons in the nucleus, which can be identified through methods like spectroscopy and X-ray diffraction. Atomic mass is determined by the total number of protons and neutrons in the nucleus, which can be calculated based on the element's isotopic composition and their respective masses.
What property of the elements is used to organize th periodic table?
The properties of elements are found to be periodic when arranged according to atomic number. Hence atomic number is considered as base for arranging the elements.
How were the atomic number and the atomic masses of the elements determined?
Atomic masses are determined by mass spectrometry. The atomic number is identic with the number of protons in the atom - depends on position in the periodic table.
What are elements determined by number?
You think probable to atomic number, equal to the number of protons in the atomic nucleus.
How are the abbreviations on the periodic table of elements determined?
by atomic number
What Moseley determine in element?
Moseley determined that the number of protons in the nucleus of an atom corresponds to the element's atomic number. This discovery led to the modern periodic table where elements are arranged in increasing atomic number.
Could the periodic table be arranged according to atomic mass than atomic number?
It was originally arranged that way and it produced some conflicts (pairs of elements in the wrong columns for their known chemical properties). Arranging by atomic number (initially arbitrary until the structure of the atom was determined) solved these conflicts.
What is the basis of arranging the elements in the periodic table?
Elements in the periodic table are arranged based on their atomic number, which represents the number of protons in the nucleus of an atom. This arrangement helps to group elements with similar properties together in periods and groups.
The ordering of the elements in the periodic table is determined?
Number of protons in the nucleus (=atomic number)
Method of arranging elements into related groups was invented by Dimitri Mendeleyev?
Dmitri Mendeleev is credited with creating the periodic table, a method for arranging elements based on their properties and atomic number. This arrangement allows for predicting the properties of elements that had not yet been discovered at the time.
What is the relationship between the atomic number and the elements identity?
The atomic number of an element determines its identity. Each element has a unique atomic number, which is the number of protons in the nucleus of its atoms. This number defines the element and distinguishes it from other elements on the periodic table.
No two elements will have the what atomic number?
No two elements will have the same atomic number because the atomic number of an element is determined by the number of protons in the nucleus of an atom. Since each element has a unique number of protons, each element will have a unique atomic number.
Are elements determined by protons?
Yes, it is the atomic number i.e. number of protons that determines an element's identity.
