Question

is mass no and atomic mass are different.​

Answer 1

Answer:

Yes..

Explanation:

Atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element's isotopes. The mass number is a count of the total number of protons and neutrons in an atom's nucleus.

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Answer 2

Aᴛᴏᴍɪᴄ ᴍᴀss ɪs ᴛʜᴇ ᴡᴇɪɢʜᴛᴇᴅ ᴀᴠᴇʀᴀɢᴇ ᴍᴀss ᴏғ ᴀɴ ᴀᴛᴏᴍ ᴏғ ᴀɴ ᴇʟᴇᴍᴇɴᴛ ʙᴀsᴇᴅ ᴏɴ ᴛʜᴇ ʀᴇʟᴀᴛɪᴠᴇ ɴᴀᴛᴜʀᴀʟ ᴀʙᴜɴᴅᴀɴᴄᴇ ᴏғ ᴛʜᴀᴛ ᴇʟᴇᴍᴇɴᴛ's ɪsᴏᴛᴏᴘᴇs. Tʜᴇ ᴍᴀss ɴᴜᴍʙᴇʀ ɪs ᴀ ᴄᴏᴜɴᴛ ᴏғ ᴛʜᴇ ᴛᴏᴛᴀʟ ɴᴜᴍʙᴇʀ ᴏғ ᴘʀᴏᴛᴏɴs ᴀɴᴅ ɴᴇᴜᴛʀᴏɴs ɪɴ ᴀɴ ᴀᴛᴏᴍ's ɴᴜᴄʟᴇᴜs.