Summary: Complete Science For Cambridge Igcse ®: ... | 9780198308713 | Stephen Pople
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Read the summary and the most important questions on Complete Science for Cambridge IGCSE ®: Complete Physics for Cambridge IGCSE ® Student Book (Third Edition) | 9780198308713 | Stephen Pople
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14 radiation
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how did scientists get models
by shooting tiny particles through atoms -
what is a atom made up of
a central nucleas made of protons and neutrons. around this orbits electrons at high speed -
why is the charge of an atom most of the time zero
because normally an atom has the same number of electrons as protons -
what is a atoms mass made up of and why
virtually most of its mass is made up by its nucleas because nucleons are each 1800x more massive then an electron -
how are the electrons held in orbit
by the force of attraction between opposite charges -
what is the strong nuclear force
the force that binds the protons and the neutrons together -
what is the smallest piece in each element
an atom -
what do you call the fact that each element has a diffrent number of protons in its atoms
atomic number or proton number -
what is each diffrent type of atom called
a nuclide -
what do elements with similair electrons also share
the same chemical properties
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