what is the atomic number of calcuim
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ᴛʜᴇ ᴀᴛᴏᴍɪᴄ ɴᴜᴍʙᴇʀ ᴏғ ᴄᴀʟᴄɪᴜᴍ ɪs 20
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the atomic number of calcuim is 20.
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