0
How would the modern periodic table would be different if elements were arranged by average atomic mass instead of by atomic number?
Wiki User
∙ 9y ago
how would the modern Periodic Table be different if elements were arranged by average Atomic Mass instead of by atomic number
Kevin Greenfelder
If elements were arranged by average Atomic Mass, elements with similar chemical properties may not be grouped together. This could make it harder to predict the characteristics and behavior of elements. Additionally, the connection between an element's properties and its position on the Periodic Table, as seen with atomic number, would be lost.
Add your answer:
Earn +20 pts
By what property did Mendeleev suggest that the periodic table be arranged?
Madeleev originally arranged the elements in the first periodic table by their average atomic masses. Later it was changed to atomic number by Moseley, or the number of protons each of that element's atom has.
What does the periodic table contain?
The four pieces of information in each box of most periodic tables are the element's name, the element's symbol, the element's average atomic weight and the element's atomic number. Other periodic tables have other information, but standard periodic tables almost always have those four.
How did mendeleev first worked out this order of elements?
Dmitri Mendeleev arranged the elements by increasing atomic mass and similar chemical properties. He left gaps for undiscovered elements and predicted their properties based on the pattern he observed, leading to the development of the periodic table.
What is the contribution of Dobereiner to the periodic table?
He provided the base for the classification of elements he says the elements are atomic masses nearly same he arranged the atomic masses of the middle element is approximately the arithmetic mean of other two elements,He first gave us the ''Law of Triads''...where he made lists of three elements each, and showed that the mass of the middle element is approximately equal to the average mass of the other two elements.
What is average atomic number?
The average atomic number is the weighted average of the atomic numbers of the isotopes of an element, taking into account their abundance in nature. It is calculated by multiplying the atomic number of each isotope by its relative abundance and summing these products for all isotopes of the element.
By what property did Mendeleev suggest that the periodic table be arranged?
Madeleev originally arranged the elements in the first periodic table by their average atomic masses. Later it was changed to atomic number by Moseley, or the number of protons each of that element's atom has.
What does the periodic table contain?
The four pieces of information in each box of most periodic tables are the element's name, the element's symbol, the element's average atomic weight and the element's atomic number. Other periodic tables have other information, but standard periodic tables almost always have those four.
What scientist published the first periodic table and how was it arranged?
In 1817, Döbereiner began to formulate one of the earliest attempts to classify the elements. He found that some elements formed groups of three with related properties. He termed these groups "triads". In all of the triads, the atomic weight of the second element was almost exactly the average of the atomic weights of the first and third element..
Are elements in the periodic table organized by their atomic numbers or their average masses?
Elements in the periodic table are organized by their atomic numbers, which represent the number of protons in the nucleus of an atom. The atomic number determines an element's unique identity and its placement in the periodic table. The average masses listed in the periodic table are based on the weighted average of an element's isotopes.
How do you calculate average atomic number of an element?
There is no average atomic number. The atomic number of an element is the number of protons in the nuclei of its atoms. It is a whole and finite number. The elements are arranged in order of increasing atomic number on the periodic table.
How did mendeleev first worked out this order of elements?
Dmitri Mendeleev arranged the elements by increasing atomic mass and similar chemical properties. He left gaps for undiscovered elements and predicted their properties based on the pattern he observed, leading to the development of the periodic table.
How are the atomic numbers and the atomic masses of the elements related to how the elements are arranged on peridoic table?
The atomic number of an element is the number of protons in its nucleus, while the atomic mass is the average mass of the isotopes of that element. Elements on the periodic table are arranged in order of increasing atomic number, which also corresponds to the number of electrons in a neutral atom of that element. The periodic table is structured based on these increasing atomic numbers, with elements organized into groups and periods based on similarities in their properties.
Do the elements in a row on the periodic table have the same average atomic mass?
no.
The first periodic table was arranged by?
Demitri Mendeleev. He arranged it by atomic mass
Why elements don't have whole numbers?
do you mean the why is the average atomic mass not a whole number? because if that is your question, then the answer is that each element has multipal isotopes and the mass you see on the periodic table is the average of all the isotopes together. So there has to be a decimal on the periodic table of elements
What is the contribution of Dobereiner to the periodic table?
He provided the base for the classification of elements he says the elements are atomic masses nearly same he arranged the atomic masses of the middle element is approximately the arithmetic mean of other two elements,He first gave us the ''Law of Triads''...where he made lists of three elements each, and showed that the mass of the middle element is approximately equal to the average mass of the other two elements.
Why is atomic mass for an element an average on the periodic table?
The atomic mass listed on the periodic table is an average because many elements exist as isotopes, with different numbers of neutrons in their nuclei. By taking a weighted average based on the abundance of each isotope in nature, a more accurate atomic mass value for an element is calculated for practical purposes.
