Question

estions
1. Define the atomic mass unit.
2. Why is it not possible to see
atom with naked eyes?​

Answer 1

1. ᴀ ᴜɴɪᴛ ᴏғ ᴍᴀss ᴜsᴇᴅ ᴛᴏ ᴇxᴘʀᴇss ᴀᴛᴏᴍɪᴄ ᴀɴᴅ ᴍᴏʟᴇᴄᴜʟᴀʀ ᴡᴇɪɢʜᴛs, ᴇǫᴜᴀʟ ᴛᴏ ᴏɴᴇ ᴛᴡᴇʟғᴛʜ ᴏғ ᴛʜᴇ ᴍᴀss ᴏғ ᴀɴ ᴀᴛᴏᴍ ᴏғ ᴄᴀʀʙᴏɴ-12.
2. ɪᴛ ɪs ɴᴏᴛ ᴘᴏssɪʙʟᴇ ᴛᴏ sᴇᴇ ᴀɴ ᴀᴛᴏᴍ ᴡɪᴛʜ ɴᴀᴋᴇᴅ ᴇʏᴇ ʙᴇᴄᴀᴜsᴇ ᴏғ ɪᴛs ᴇxᴛʀᴇᴍᴇʟʏ sᴍᴀʟʟ sɪᴢᴇ (ᴀᴛᴏᴍɪᴄ ʀᴀᴅɪᴜs ɪs ᴏғ ᴛʜᴇ ᴏʀᴅᴇʀ ᴏF 10-10 ᴍ).

$\huge\purple{\mid{\fbox{\tt{ɢᴜᴍᴍɪᴇ}}\mid}}$

Answer 2

Answer:

1.a unit of mass used to express atomic and molecular weights, equal to one twelfth of the mass of an atom of carbon-12.

2.It is not possible to see an atom with naked eye because of its extremely small size (atomic radius is of the order of 10-10 m).

I hope my answer is helpful for you ✌️☺️