Question

What is meant by sub - atomic particle ?​

Answer 1

Answer:

Subatomic particles include electrons, the negatively charged, almost massless particles that nevertheless account for most of the size of the atom, and they include the heavier building blocks of the small but very dense nucleus of the atom, the positively charged protons and the electrically neutral neutrons

Explanation:

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘꜱ ʏᴏᴜ ᴍᴀʀᴋ ᴍᴇ ᴀꜱ ʙʀᴀɪɴʟɪᴇꜱᴛ ꜰᴏʀ ᴍᴏʀᴇ ᴀɴꜱᴡᴇʀꜱ ꜰᴏʟʟᴏᴡ ᴍᴇ

Answer 2

Answer:

a particle smaller than an atom (e.g., a neutron) or a cluster of such particles (e.g., an alpha particle).