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ATOM (Gr. c.royos, indivisible, from aprivative, and ,uvEiv, to cut), the term given in physical science to the ultimate indivisible particle of matter, and so by analogy to something minutely small in size. If we examine such a substance as sugar we find that it can be broken up into fine grains, and these again into finer, the finest particles still appearing to be of the same nature as sugar. The same is true in the case of a liquid such as water; it can be divided into drops and these again into smaller drops, or into the finest spray the particles of which are too small to be detected by our unaided vision. In fact, so far as the direct evidence of our senses tells us, matter appears to be indefinitely divisible. Moreover, small particles do not seem to exist in the water until it is broken up; so far as we can see, the material of the water is continuous not granular.

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The weight in daltons of one atom of an element is?

equal to the atomic mass of the element expressed in daltons. It is essentially the mass of one mole of the element in grams.


Which scientists law about the ratios of masses of elements in a compound did John Daltons work on the atomic structure help to explain?

John Dalton's work on atomic structure helped to explain the Law of Multiple Proportions put forth by French chemist Joseph Proust. This law states that when elements combine to form compounds, they do so in simple whole-number ratios based on their atomic masses. Dalton's atomic theory proposed that elements are made up of indivisible particles called atoms, which provided a conceptual foundation for understanding how elements combine to form compounds in fixed ratios.


How many daltons does one molecule of water have?

One molecule of water has a total molecular weight of approximately 18 daltons. This weight is calculated by adding the atomic weights of two hydrogen atoms (each 1 dalton) and one oxygen atom (approximately 16 daltons).


Dalton's fourth postulate states that atoms combine?

Dalton's fourth postulate states that atoms combine in simple whole-number ratios to form compounds. This postulate laid the foundation for the law of definite proportions and the law of multiple proportions in chemical reactions and helped in the development of modern atomic theory.


What is the molecular weight of the compound in daltons and how does it convert to grams per mole (g/mol)?

The molecular weight of a compound is the sum of the atomic weights of all the atoms in the molecule. It is measured in daltons (Da) and is equivalent to grams per mole (g/mol). To convert from daltons to grams per mole, you can use the conversion factor 1 Da 1 g/mol.

Related Questions

How does Daltons atomic theory explain the law of definite proportions?

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Who developed the multiple proportions law?

The Law of Multiple Proportions was developed by John Dalton based on the Law of Definite Proportions, was part of what laid the groundwork for his atomic theory, and for the basis of chemical formulas for compounds.English chemist John Dalton


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 parts of daltons atomic theory is illustrated by 2 parts of hydrogen and oxygen forming water?

Dalton's atomic theory is illustrated by the combination of hydrogen and oxygen to form water in two ways: through the law of definite proportions, which states that compounds contain elements in specific ratios by mass, and through the law of multiple proportions, which states that different compounds can be formed by combining the same elements in different ratios.


What part of Daltons atomic theory was then proven to be incorrect?

Two principles not valid today:· All atoms of a given element are identical.· A given compound always has the same relative numbers of types of atoms.


The weight in daltons of one atom of an element is?

equal to the atomic mass of the element expressed in daltons. It is essentially the mass of one mole of the element in grams.


What is the approximate mass of a neon-11 atom?

The approximate mass is 11. Technically you could express this in units of daltons as 11 Da (Daltons previously called amu, atomic mass unit, or as 11 (the dimensionless, relative atomic mass which chemists simply call atomic weight) .


If the atomic mass of oxygen is 16 and the atomic mass of hydrogen is 1 how do the current atomic masses compare to daltons?

Atoms are made up of protons, neutrons, and electrons. The atomic mass listed on the periodic table is an average of all the isotopes of an element, which includes the mass of the protons and neutrons. Therefore, the atomic masses listed for oxygen (16) and hydrogen (1) are in daltons.


What is the atomic mass of neon'?

The approximate mass is 11. Technically you could express this in units of daltons as 11 Da (Daltons previously called amu, Atomic Mass unit, or as 11 (the dimensionless, relative atomic mass which chemists simply call atomic weight) .


What led Dalton to research to structure of atom?

Dalton's interest was sparked in atoms because he wanted to know why elements combine in specific proportions to form compounds. He was a pioneer in the development of modern atomic theory.


Which tenet of Daltons atomic theory did Thomson disprove?

Atoms cannot be divided into smaller particles.


What main feature of daltons atomic model was abandoned after thomson's discoveries?

The idea that atoms are indivisible.