Question

What is periodic table ​

Answer 1

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ᴛʜᴇ ᴘᴇʀɪᴏᴅɪᴄ ᴛᴀʙʟᴇ ɪs ᴀ ᴛᴀʙᴜʟᴀʀ ᴀʀʀᴀʏ ᴏғ ᴛʜᴇ ᴄʜᴇᴍɪᴄᴀʟ ᴇʟᴇᴍᴇɴᴛs ᴏʀɢᴀɴɪᴢᴇᴅ ʙʏ ᴀᴛᴏᴍɪᴄ ɴᴜᴍʙᴇʀ, ғʀᴏᴍ ᴛʜᴇ ᴇʟᴇᴍᴇɴᴛ ᴡɪᴛʜ ᴛʜᴇ ʟᴏᴡᴇsᴛ ᴀᴛᴏᴍɪᴄ ɴᴜᴍʙᴇʀ, ʜʏᴅʀᴏɢᴇɴ, ᴛᴏ ᴛʜᴇ ᴇʟᴇᴍᴇɴᴛ ᴡɪᴛʜ ᴛʜᴇ ʜɪɢʜᴇsᴛ ᴀᴛᴏᴍɪᴄ ɴᴜᴍʙᴇʀ, ᴏɢᴀɴᴇssᴏɴ. ᴛʜᴇ ᴀᴛᴏᴍɪᴄ ɴᴜᴍʙᴇʀ ᴏғ ᴀɴ ᴇʟᴇᴍᴇɴᴛ ɪs ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴘʀᴏᴛᴏɴs ɪɴ ᴛʜᴇ ɴᴜᴄʟᴇᴜs ᴏғ ᴀɴ ᴀᴛᴏᴍ ᴏғ ᴛʜᴀᴛ ᴇʟᴇᴍᴇɴᴛ

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Answer 2

Answer:

a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.