7.27.2 starter31 January 201211:35Tell the person next to you…
· The names of 3 subatomic particles· What properties do they have?<<atomic structure - electrons orbiting the nucleus.swf>><<sub-atomic particles - drag and drop.swf>>7.211 January 201214:49· 7.2 describe the structure of an atom in terms of protons, neutrons and electrons and use symbols such as 146C to describe particular nuclei<<Proton number and mass number.ppt>><<atomic structure of Li - mass and proton numbers.swf>>
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