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The constant proportions - combining different substances into other substances always required the same proportions of each substances; in the case of gases, the numbers come in simple ratios. For example, 2 volume units of hydrogen + 1 volume unit of oxigen combine to form water.
What else can I help you with?
All substance are built from what?
All Substances are built from Atoms
What do you call someone who studies elements atoms and molecules?
you call it chemist i think
Who was the first scientist generally accredited with putting the study of chemistry on a firm experimental basis?
John Dalton because Dalton predicted new combinations of elements; these new combinations were found providing evidence that Dalton's theory worked.
What is a collection of atoms called?
A large collection of neutral atoms with the same atomic number is a sample of an element. Elements include include lithium, hydrogen, neon, and oxygen. Note that different isotopes of elements exist; these are atoms with the same atomic number but having a different number of neutrons.
What are the 2 most common elements and compounds?
the most common element is hydrogen and its molecule of two hydrogen atoms is the most common molecule
John Dalton believed that atom could join together form?
John Dalton believed that atoms could join together to form compounds by combining in simple whole number ratios. His atomic theory proposed that atoms were indivisible and that elements were made up of identical atoms.
Which best describes john Dalton's observations of elements in any given compound?
Dalton discovered that the atoms that combine to form compounds are distinguished from one another by their atomic weights. He also learned that all atoms of a given element are identical.
How did Dalton think atoms formed new substance?
Dalton believed that atoms combined in fixed whole number ratios to form new substances through chemical reactions. He proposed that atoms were indivisible and that different elements were made up of unique atoms that combined in simple ratios to create compounds. This atomic theory formed the basis for modern chemistry.
What did John Dalton think about atoms?
A thing that had a centre with a outer rim
What elements exist as single atoms not bonded to other atoms?
Noble gases such as helium, neon, argon, krypton, and xenon exist as single atoms not bonded to other atoms. They are stable with a full outer electron shell, making them unreactive and existing as individual atoms in their natural state.
How were John Dalton's findings significant?
John Dalton held many roles within his lifetime. He was a chemist, meteorologists, and physicist. He affected the world through his development of the atomic theory and by providing feedback on his research conducted for color blindness.
Did John Dalton's model of the atom look like a tiny solid sphere with a predictable mass for a given element?
I think it probably looked like a sphere. not positive.
How did John Dalton arrive at his conclusions?
To develop his Atomic theory, John Dalton supported his claims on his own previous research on combination of gases, his findings regarding how certain gases could only be combined in certain proportions, no matter if they shared common elements, that led him to think that elements combination was being realized at a very primary level, among very tiny particles. He called those particles 'atoms', from the Greek word 'atomos', which means 'uncut'.
Not all of Daltons rules were completely true as scientists later learned Matter is made of atoms and different elements are made of different atoms But not all atoms of a particular element are?
Dalton's atomic theory proposed that all atoms of a particular element are identical, which we now know is not entirely true. Isotopes are atoms of the same element with different numbers of neutrons, leading to variations in atomic mass. This discovery challenged Dalton's rule of identical atoms for a given element.
All substance are built from what?
All Substances are built from Atoms
Who was John Dalton and what did he do and when did he do it?
John Dalton (1766 1844) was a British chemist and physicist, and is best known for his work on gasses and the atomic theory.Dalton's Law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of all the constituent gasses..Dalton's contribution to the atomic theory served as the foundation for modern chemistry.Dalton's atomic theory suggested that:different elements have atoms of different weights, and that all atoms of a given element are identicalatoms form compounds in the same relative quantities, and their relative ratios are always integersatoms are indestructibleHe proposed the atomic theory, that atoms were like a huge mass of evenly distributed negative charges containing electrons whose positive charges were uniformly spread within.You can think of a big piece of cake with raisins stuck into it. Preferably then it has come to be known as the "plum pudding" modelJohn Dalton used evidence from his experiments with gases to show that there are many types of atoms, not just one kind. He came up with the concept of elements and compounds. He thought incorrectly that gas elements such as oxygen come as single atoms which can't be broken.His atomic theory has since been superseded.
What law was proved to be correct by Dalton?
You think probable to the followings:- Atoms of different elements combine in simple whole-number ratios to form chemical compounds.or- The total pressure in a mixture of gases is the sum of the partial pressure of each gas.
