جميع المواضيع المتعلقة بـ ‘nucleus’

 

Structure of the Atom

Each atom is made up of an inner core called the nucleus.

 – Most of the atom’s mass is located in the relatively small nucleus.

 – The rest of the atom is comprised of a relatively large region outside the nucleus where the electrons are found.

– The atom is made of 3 subatomic particles:

Positively charged protons Neutral particles called neutrons Negatively charged electrons

– Protons and neutrons…

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Atomic Theory

Dalton’s Model of the atom. It is the basis of our understanding of the nature of matter. The following four statements comprise Dalton’s Model:

a –  All matter is made up of extremely tiny. particles. called atoms.

b-  Atoms are indivisible.

c – Atoms of the same element are alike.

d –  Atoms of different elements are different.

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