what werr the merits an de merits of mendeleyev s periodic table
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sᴏᴍᴇ ɢᴀᴘs ᴡᴇʀᴇ ʟᴇғᴛ ғᴏʀ ᴛʜᴇ ᴇʟᴇᴍᴇɴᴛs ʏᴇᴛ ᴛᴏ ʙᴇ ᴅɪsᴄᴏᴠᴇʀᴇᴅ. ᴛʜᴜs, ɪғ ᴀ ᴄᴇʀᴛᴀɪɴ ɴᴇᴡ ᴇʟᴇᴍᴇɴᴛ ɪs ᴅɪsᴄᴏᴠᴇʀᴇᴅ, ɪᴛ ᴄᴀɴ ʙᴇ ᴘʟᴀᴄᴇᴅ ɪɴ ᴀ ɴᴇᴡ ɢʀᴏᴜᴘ ᴡɪᴛʜᴏᴜᴛ ᴅɪsᴛᴜʀʙɪɴɢ ᴀɴʏ ᴇxɪsᴛɪɴɢ ɢʀᴏᴜᴘ. ʜᴇ ᴡᴀs ᴜɴᴀʙʟᴇ ᴛᴏ ʟᴏᴄᴀᴛᴇ ʜʏᴅʀᴏɢᴇɴ ɪɴ ᴛʜᴇ ᴘᴇʀɪᴏᴅɪᴄ ᴛᴀʙʟᴇ. ɪɴᴄʀᴇᴀsᴇ ɪɴ ᴀᴛᴏᴍɪᴄ ᴍᴀss ᴡᴀs ɴᴏᴛ ʀᴇɢᴜʟᴀʀ ᴡʜɪʟᴇ ᴍᴏᴠɪɴɢ ғʀᴏᴍ ᴏɴᴇ ᴇʟᴇᴍᴇɴᴛ ᴛᴏ ᴀɴᴏᴛʜᴇʀ.. ...
ʜᴏᴘᴇ ɪᴛ's ʜᴇʟᴘғᴜʟ ᴛᴏ ʏᴏᴜ...
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