Science, asked by rishiraj4784, 17 days ago

Give scientific reason sodium is more metallic than aluminium

Answers

Answered by itzsecretagent

Answer:

ᴛʜᴇ ᴇғғᴇᴄᴛɪᴠᴇ ɴᴜᴄʟᴇᴀʀ ᴄʜᴀʀɢᴇ ɪs ᴍᴏʀᴇ ᴏɴ ᴀʟᴜᴍɪɴɪᴜᴍ ᴛʜᴀɴ sᴏᴅɪᴜᴍ ᴀɴᴅ ᴛʜᴜs ᴀʟᴜᴍɪɴɪᴜᴍ ʜᴀs ᴀ sᴍᴀʟʟᴇʀ sɪᴢᴇ. ᴛʜᴜs, ʀᴇᴍᴏᴠᴀʟ ᴏғ ᴇʟᴇᴄᴛʀᴏɴs ғʀᴏᴍ ᴀʟᴜᴍɪɴɪᴜᴍ ʀᴇǫᴜɪʀᴇs ʜɪɢʜᴇʀ ᴇɴᴇʀɢʏ ᴛʜᴀɴ sᴏᴅɪᴜᴍ ɪ.ᴇ. ɪᴏɴɪᴢᴀᴛɪᴏɴ ᴇɴᴇʀɢʏ ᴏғ ᴀʟᴜᴍɪɴɪᴜᴍ ɪs ʜɪɢʜᴇʀ ᴛʜᴀɴ sᴏᴅɪᴜᴍ. ᴛʜɪs ᴍᴀᴋᴇs sᴏᴅɪᴜᴍ ᴍᴏʀᴇ ᴍᴇᴛᴀʟʟɪᴄ ᴛʜᴀɴ ᴀʟᴜᴍɪɴɪᴜᴍ.

Answered by khanirfu

Answer:

The effective nuclear charge is more on aluminium than sodium and thus aluminium has a smaller size. Thus, removal of electrons from aluminium requires higher energy than sodium i.e. ionization energy of aluminium is higher than sodium. This makes sodium more metallic than aluminium.

Explanation:

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