the nuclear atom



 THE NUCLEAR ATOM


ATOMIC MODEL
 is a representation of a atom


ALPHA PARTICLE
Consist of two protons and two neutrons bound together into a particle identical to a helium nucleus.
ELECTRON
Is a negatively charged.
NUCLEUS
Is the small dense región consisting of proton and neutrón at the center of an atom.
PROTON
A positively charged, elementary particle that is a fundamental constituent of all atomic nucleus.
NEUTRON
An elemetary particle having no charge, mass slightly greater than that of a proton and spin of ½ : a constituent of the nucleus of all atoms except those of hydrogen. Symbol N.

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Skill Builder, Item 4 page 80

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