Question

define atomic mass ​

Answer 1

Answer:

the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes

Answer 2

Tʜᴇ ᴍᴀss ᴏғ ᴀɴ ᴀᴛᴏᴍ ᴏғ ᴀ ᴘᴀʀᴛɪᴄᴜʟᴀʀ ᴄʜᴇᴍɪᴄᴀʟ sᴜʙsᴛᴀɴᴄᴇ ɪs ᴄᴀʟʟᴇᴅ ᴀᴛᴏᴍɪᴄ ᴍᴀss.

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