define moderm preiodic law
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Explanation:
the law that the properties of the elements are periodic functions of their atomic numbers. Also called Mendeleev's law. (originally) the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights.
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ᴛʜᴇ ʟᴀᴡ ᴛʜᴀᴛ ᴛʜᴇ ᴘʀᴏᴘᴇʀᴛɪᴇs ᴏғ ᴛʜᴇ ᴇʟᴇᴍᴇɴᴛs ᴀʀᴇ ᴘᴇʀɪᴏᴅɪᴄ ғᴜɴᴄᴛɪᴏɴs ᴏғ ᴛʜᴇɪʀ ᴀᴛᴏᴍɪᴄ ɴᴜᴍʙᴇʀs. ᴀʟsᴏ ᴄᴀʟʟᴇᴅ ᴍᴇɴᴅᴇʟᴇᴇᴠ's ʟᴀᴡ. (ᴏʀɪɢɪɴᴀʟʟʏ) ᴛʜᴇ sᴛᴀᴛᴇᴍᴇɴᴛ ᴛʜᴀᴛ ᴛʜᴇ ᴄʜᴇᴍɪᴄᴀʟ ᴀɴᴅ ᴘʜʏsɪᴄᴀʟ ᴘʀᴏᴘᴇʀᴛɪᴇs ᴏғ ᴛʜᴇ ᴇʟᴇᴍᴇɴᴛs ʀᴇᴄᴜʀ ᴘᴇʀɪᴏᴅɪᴄᴀʟʟʏ ᴡʜᴇɴ ᴛʜᴇ ᴇʟᴇᴍᴇɴᴛs ᴀʀᴇ ᴀʀʀᴀɴɢᴇᴅ ɪɴ ᴛʜᴇ ᴏʀᴅᴇʀ ᴏғ ᴛʜᴇɪʀ ᴀᴛᴏᴍɪᴄ ᴡᴇɪɢʜᴛs.
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