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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.
Why did Mendeleev create the periodic table?
Dmitri Mendeleev created the periodic table to organize and classify the elements based on their properties and atomic weights, allowing for easier understanding and prediction of element behavior.
where was the desert was the atomic bomb tested in?
The original atomic bomb testing ground was in Almogordo, New Mexico.
Who was a help in the atomic bomb project?
well, the atomic bomb research was done by Robert oppenheimer. the original creation or idea was from albert Einstein
What was the original atomic bomb cities during World War 2?
Hiroshima and Nagasaki .
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.
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.
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 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.
Dimitri Mendeleev made the original peridic table based on what?
Atomic Mass
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.
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.
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.
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 are the atomic weights of two isotopes of the element number?
both the atomic number and the atomic mass remain the same
What is the mass of a mole of NaCl measured by?
The mass of one mole of NaCl is the sum of the atomic weights for sodium and chlorine in grams. The atomic weights are found on the periodic table.
