Question

1.what is isotope?
2.what do u understand by atomic number?

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Answer 1

⠀⠀ ⠀ ⠀⠀ $\huge{\tt{\red{❥}\green{A}\purple{N}\pink{S}\blue{W}\orange{E}\red{R}}}$

$\sf\red{1\: ☞}$ᴀɴ ɪsᴏᴛᴏᴘᴇ ɪs ᴏɴᴇ ᴏғ ᴛᴡᴏ ᴏʀ ᴍᴏʀᴇ ғᴏʀᴍs ᴏғ ᴛʜᴇ sᴀᴍᴇ ᴄʜᴇᴍɪᴄᴀʟ ᴇʟᴇᴍᴇɴᴛ. ᴅɪғғᴇʀᴇɴᴛ ɪsᴏᴛᴏᴘᴇs ᴏғ ᴀɴ ᴇʟᴇᴍᴇɴᴛ ʜᴀᴠᴇ ᴛʜᴇ sᴀᴍᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴘʀᴏᴛᴏɴs ɪɴ ᴛʜᴇ ɴᴜᴄʟᴇᴜs, ɢɪᴠɪɴɢ ᴛʜᴇᴍ ᴛʜᴇ sᴀᴍᴇ ᴀᴛᴏᴍɪᴄ ɴᴜᴍʙᴇʀ, ʙᴜᴛ ᴀ ᴅɪғғᴇʀᴇɴᴛ ɴᴜᴍʙᴇʀ ᴏғ ɴᴇᴜᴛʀᴏɴs ɢɪᴠɪɴɢ ᴇᴀᴄʜ ᴇʟᴇᴍᴇɴᴛᴀʟ ɪsᴏᴛᴏᴘᴇ ᴀ ᴅɪғғᴇʀᴇɴᴛ ᴀᴛᴏᴍɪᴄ ᴡᴇɪɢʜᴛ.

$\sf\red{2\: ☞}$ᴀᴛᴏᴍɪᴄ ɴᴜᴍʙᴇʀ, ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ᴇʟᴇᴍᴇɴᴛ ɪɴ ᴛʜᴇ ᴘᴇʀɪᴏᴅɪᴄ sʏsᴛᴇᴍ, ᴡʜᴇʀᴇʙʏ ᴛʜᴇ ᴇʟᴇᴍᴇɴᴛs ᴀʀᴇ ᴀʀʀᴀɴɢᴇᴅ ɪɴ ᴏʀᴅᴇʀ ᴏғ ɪɴᴄʀᴇᴀsɪɴɢ ɴᴜᴍʙᴇʀ ᴏғ ᴘʀᴏᴛᴏɴs ɪɴ ᴛʜᴇ ɴᴜᴄʟᴇᴜs. ᴀᴄᴄᴏʀᴅɪɴɢʟʏ, ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴘʀᴏᴛᴏɴs, ᴡʜɪᴄʜ ɪs ᴀʟᴡᴀʏs ᴇǫᴜᴀʟ ᴛᴏ ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴇʟᴇᴄᴛʀᴏɴs ɪɴ ᴛʜᴇ ɴᴇᴜᴛʀᴀʟ ᴀᴛᴏᴍ, ɪs ᴀʟsᴏ ᴛʜᴇ ᴀᴛᴏᴍɪᴄ ɴᴜᴍʙᴇʀ.❤