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The original atomic weights were based on the mass of hydrogen.

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5mo ago

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Related Questions

Why do atomic weights are in fraction?

Because atomic weights must be measured in fractions.


Why are atomic weights realitive weights?

Actually weights are too small and are hard to work with.


Dimitri Mendeleev made the original peridic table based on what?

Atomic Mass


The atomic weight of Br is the of the atomic weights of Cl and l?

The atomic weight of Br (Bromine) is the sum of the atomic weights of Cl (Chlorine) and I (Iodine). This is because bromine falls between chlorine and iodine in the periodic table, thus its atomic weight is approximately the average of the atomic weights of chlorine and iodine.


What elements did John Dalton discover the atomic weights of?

John Dalton determined the atomic weights of several elements, including hydrogen, oxygen, carbon, nitrogen, and sulfur, among others. He used hydrogen as the reference point with an atomic weight of 1, assigning relative weights to other elements based on their combinations with hydrogen. Dalton's work laid the foundation for the modern understanding of atomic theory and the relative weights of elements. His findings were crucial in advancing the field of chemistry in the early 19th century.


What does daltons fourth postulate state?

Dalton's fourth postulate states that atoms of different elements have different weights. This idea laid the foundation for the concept of atomic mass and helped to distinguish between different elements based on their atomic weights.


What was the periodic table first arranged by. How has this changed?

In 1869 Russian teacher and scientist Dmitri Mendeleev, presented a periodic table of the elements based on atomic weights. The current periodic table is arranged by the atomic numbers of the elements.


Who was the first scientist to determine atomic weights for elements?

The first scientist to determine atomic weights for elements was John Dalton, an English chemist and physicist.


Base weight a system of comparing atomic weights to carbon is it true or false?

True. The unit for the atomic weights of chemical elements is the relative atomic mass unit (1/12 from the atomic mass of the isotope 12C). Note that atomic weights is used for elements and atomic mass for isotopes.


What are the atomic weights of two isotopes of the element number?

both the atomic number and the atomic mass remain the same


What is often used in place of atomic weights?

Relative atomic masses are often used in place of atomic weights. They represent the weighted average of the masses of the isotopes of an element relative to the mass of a carbon-12 atom.


What has the author Edward Vogel written?

Edward Vogel has written: 'The atomic weights are, under atmospheric pressure, not identical with the specific gravities' -- subject(s): Atomic weights