Particles are not in contact and move randomly. Distances between the particles are very much greater than the diameter of the particles and even at room temperature the particles in a ___ are moving extremely quickly
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Card 7
Front
It is an atom with had had one or more electrons added or taken away meaning it is no longer neutral in charge
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Card 8
Front
It is an atom with the same proton number but different numbers of neutrons in their nuclei
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Card 9
Front
Atoms of elements in a ____ have the same number of electrons in their outer shell
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Card 10
Front
On passing from one element to the next an electron and a proton are added to the atom
