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The first scientist to show that atoms emit tiny negative particles was?
Wiki User
∙ 10y ago
ha,
i have this same question on my semester exam review.
im almost positive is J.J. Thomson
Wiki User
∙ 15y ago
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When did scientist first learn to split atoms?
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Who was the first scientist to discover atoms?
Centries ago , a Greek philosopher , Democritus belived , that all matter was composed of extremely small particles to which he give the name Atomos meaning not to divide. During the early nineteeth centry an English scientist John Dalton , did some carefull experiment. His results convinced that atoms were not all alike .They differ in size , mass , and chemical behaviour , for example oxygen atoms are bigger and greater than hydrogen atoms.
Did Democritus describe that Atoms are small hard particles?
No, Democritus was the first to think of atoms, Dalton thought the atom was an indestructible sphere.
How did scientist discover that atoms contained a nucleus?
Well, first of all scientific hygrenals used by scientists made it easy to discover it.
Who is the first scientist discover the atom?
Democritus a greek philosopher was the first to propose that every matter are made up of tiny particles called atom or in greek "a-timos"
What evidence supported thomsons hypothesis that the negative particles he observed from inside atoms?
Thomson had two pieces of evidence: 1- No matter what metal he used for the disk, the particles produced were indentical. 2- The particles had about 1/2000 the mass of a hydrogen, the lightest atom. These experiments provided the first evidence that atoms are made of even smaller particles.
Which british scientist first disvored atoms and nucleus?
british scientist discovered the nucleus
What evidence supported Thomson's hypothesis that negative particles he observed came from inside atoms.?
Thomson had two pieces of evidence: 1- No matter what metal he used for the disk, the particles produced were indentical. 2- The particles had about 1/2000 the mass of a hydrogen, the lightest atom. These experiments provided the first evidence that atoms are made of even smaller particles.
Who was the English scientist that said all matter is made up of a relatively small number indivisible particles called atom?
The Greek philosophers Leucippus and Democritus first theorized about atoms. In fact, that's who named them atoms.
Describe the discovery that demonstrate for the first time that atoms are not the smallest particles of matter?
The discovery of the subatomic particles demonstrated for the first time that atoms are not the smallest particles of matter. Electron was the first subatomic particle discovered by J.J. Thomson.
When did scientist first learn to split atoms?
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Which scientist first made a model of the atom with subatomic particles?
John Dalton
Who was the first scientist to discover atoms?
Centries ago , a Greek philosopher , Democritus belived , that all matter was composed of extremely small particles to which he give the name Atomos meaning not to divide. During the early nineteeth centry an English scientist John Dalton , did some carefull experiment. His results convinced that atoms were not all alike .They differ in size , mass , and chemical behaviour , for example oxygen atoms are bigger and greater than hydrogen atoms.
What is an atoms nucleus?
An atom's nucleus contains two types of particles. The first is protons, which carry a negative charge. The second type of particle is the neutron, which has a neutral charge. These two particles are about equal in mass.
Who first suggests that atoms are made up of smaller particles?
j.j thomson
Who was the English scientist who first offered strong evidence that atoms exist?
John Dalton
Who first Proposed the idea that atoms had positive and negative parts?
Rutherford
