The only metal known to occur in liquid form is ..................
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Mercury is the only metal that is liquid at R.T.
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ᴍᴇʀᴄᴜʀʏ ɪs ᴛʜᴇ ᴏɴʟʏ ᴍᴇᴛᴀʟ ᴛʜᴀᴛ ɪs ʟɪϙᴜɪᴅ ᴀᴛ ʀ.ᴛ.
ᴇxᴘʟᴀɴᴀᴛɪᴏɴ:
ᴍᴇʀᴄᴜʀʏ ʜᴀs ᴀ ᴍᴇʟᴛɪɴɢ ᴘᴏɪɴᴛ ᴏғ -39°ᴄ ᴀɴᴅ ᴀ ʙᴏɪʟɪɴɢ ᴘᴏɪɴᴛ ᴏғ 357°ᴄ, ᴡʜɪᴄʜ ᴍᴀᴋᴇs ɪᴛ ʟɪϙᴜɪᴅ ᴀᴛ ʀᴏᴏᴍ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ (ᴀʀᴏᴜɴᴅ 20°ᴄ).
ᴘʟᴢ.ᴍᴀʀᴋ ᴍᴇ ᴀs ʙʀᴀɪɴʟɪᴇsᴛ....
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