Question

Describe Rutherford's contribution to the atomic model

Answer 1

Rutherford overturned Thomson's model in 1911 with his well known gold foil experiment in which he demonstrated that the atom has a tiny and heavy nucleus.He used the alpha particles emitted by a radioactive element as probes to atomic structure.

Answer 2

ᴀᴄᴄᴏʀᴅɪɴɢ ᴛᴏ ᴛʜᴇ ʀᴜᴛʜᴇʀғᴏʀᴅ ᴀᴛᴏᴍɪᴄ ᴍᴏᴅᴇʟ: ᴛʜᴇ ᴘᴏsɪᴛɪᴠᴇʟʏ ᴄʜᴀʀɢᴇᴅ ᴘᴀʀᴛɪᴄʟᴇs ᴀɴᴅ ᴍᴏsᴛ ᴏғ ᴛʜᴇ ᴍᴀss ᴏғ ᴀɴ ᴀᴛᴏᴍ ᴡᴀs ᴄᴏɴᴄᴇɴᴛʀᴀᴛᴇᴅ ɪɴ ᴀɴ ᴇxᴛʀᴇᴍᴇʟʏ sᴍᴀʟʟ ᴠᴏʟᴜᴍᴇ. ʜᴇ ᴄᴀʟʟᴇᴅ ᴛʜɪs ʀᴇɢɪᴏɴ ᴏғ ᴛʜᴇ ᴀᴛᴏᴍ ᴀs ᴀ ɴᴜᴄʟᴇᴜs. ʀᴜᴛʜᴇʀғᴏʀᴅ ᴍᴏᴅᴇʟ ᴘʀᴏᴘᴏsᴇᴅ ᴛʜᴀᴛ ᴛʜᴇ ɴᴇɢᴀᴛɪᴠᴇʟʏ ᴄʜᴀʀɢᴇᴅ ᴇʟᴇᴄᴛʀᴏɴs sᴜʀʀᴏᴜɴᴅ ᴛʜᴇ ɴᴜᴄʟᴇᴜs ᴏғ ᴀɴ ᴀᴛᴏᴍ.

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