The Atom -Part I

Questão	Responda
What is the building unit of matter ?	Atom
Name the subatomic particles.	1. Protons ( charge +) 2. Neutrons ( charge -) 3. Electrons ( charge 0) So the atom is electrically neutral.
The atomic model was introduced...	- with the identification of subatomic particles - as a result of efforts taken to describe how they were arranged in matter
Who found the nuclear model ? When?	Ernest Rutherford in 1911
What special feature did it bring out ?	According to that a small area called the nucleus was at the center of the atom. [NUCLEAR...]
What are the subatomic particles in the nucleus ?	Protons & Neutrons
What about the size of the atom ?	Relatively small to the atom. If the atom was a football pitch, nucleus 'd be smaller than a chickpea.

Resumo de Recurso

	Criado por kalshini dulmitha aproximadamente 4 anos atrás