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In the 1800s John Dalton did some experiments and these are some of his magnificent work: * all elements are composed of atoms. atoms can not be divided or destroyed * atoms of the same element are alike * .atoms of different elements are not alike * the atoms of two or more elements can join together to form compounds
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Daltons atomic theory stated that atoms?
atoms are indivisible,tiniest particles of matter. they combine in simple whole no ratios to form elements or compounds. they can neither be created, nor destroyed.
How is the modern atomic theory different from Daltons atomic theory?
In Dalton's theory the electrons in the atom travel in a one layered orbital rotation around the nucleus, in the modern, or electron cloud, theory the electrons travel in a more radical patterned movement while still staying in their respected energy levels.
Elements are organized in the periodic table by their?
The periodic table is a function of the atomic number.
What determines the amount of energy an electrons has?
distance from the atomic nuclei
What metal is the lightest titanium gold silver aluminum?
aluminum is the lightest atomic #13 titanium atomic #22 silver atomic #47 gold is heaviest atomic #79
What are the sub atomic particles for john daltons model?
protons,neutrons and electrons are the sub atomic particles
How does Daltons atomic theory explain the law of definite proportions?
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Who wrote the first atomic therory?
John Dalton (1766-1844) developed the first atomic theory around 1803
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 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) .
What main feature of daltons atomic model was abandoned after thomson's discoveries?
The idea that atoms are indivisible.
Did daltons atomic theory include the idea that all atoms of all elements are the same size?
no.
Which tenet of Daltons atomic theory did Thomson disprove?
Atoms cannot be divided into smaller particles.
How did daltons atomic theory lead to the different model scientists have today?
Dalton's theory was irrelevant to the total compensation of of the Atomic Mass.
Did postulate 4 of Daltons atomic theory holds true now?
This postulate is valid today only in some situations.
Why scientists accepted daltons atomic theory but not the idea of an atom proposed by the Greek philosopher?
the Greek Philosophers did not test their theory.
What was one main point if daltons atomic theory?
ttha atoms made up pthe smallest forms of matter
