Question

define mettalic radius

Answer 1

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◆It is defined as one-half the inter-nuclear distance between the two adjacent metal ions in the metallic lattice.
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Answer 2

⭐ᴍᴇᴛᴀʟʟɪᴄ ʀᴀᴅɪᴜꜱ ʀᴇꜰᴇʀʀᴇᴅ ᴀꜱ ᴏɴᴇ-ʜᴀʟꜰ ᴏꜰ ᴛʜᴇ ᴅɪꜱᴛᴀɴᴄᴇ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ ɴᴜᴄʟᴇɪ ᴏꜰ ᴛᴡᴏ ᴀᴛᴏᴍꜱ ɪɴ ᴄʀyꜱᴛᴀʟ.

⭐ᴍᴇᴛᴀʟʟɪᴄ ʀᴀᴅɪɪ ᴅᴇᴄʀᴇᴀꜱᴇꜱ ᴀᴄʀᴏꜱꜱ ᴛʜᴇ ᴩᴇʀɪᴏᴅ.