Atomic Theory

Which of the following were the Greek scholars who believed that matter could be divided intotiny particles until such point where it can no longer be divided anymore?

• Empedocles

• Aristotle

• Democritus

• Plato

Why did Aristotle strongly oppose the concept of atoms?

• He believed that everything in the universe was made up of elements, not atoms.

• He believed that atoms exist, but they were not the fundamental particles of matter.

• He thought that molecules, not atoms, were the smallest particles in the universe.

• Atoms can combine with other atoms to form molecules or compounds.

According to atomism, nature is composed of two basic principles: atom and

____.

It is a Greek word which means uncuttable or indestructible.

• Atom

• Atomic

• Omsim

• Atomos

John Daldon described and illustrated the atom into what model?

• Plum Pudding Model

• Solid Sphere Model

• Atomic Model

• Nuclear Model of Atom

He proposed the plum pudding model where an atom is

presented as a uniform positively charged sphere embedded with electrons.

• 
• 
• 
• 

JJ Thomson’s cathode-ray tube experiment allowed him to discover what subatomic particle?

Which of the following is Rutherford's Nuclear Model of Atom?

• 
• 
• 

Ernest Rutherford performed a gold foil experiment. The results of

his experiment lead to the discovery of the?

• electron

• proton

• nucleus

James Chadwick proved the existence of ________ which are neutral particles

in the nucleus of the atom by bombarding alpha particles on beryllium.

• neutron

• electron

• proton

• nucleus