Question

When is said to be the nucleus
unstable?
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Answer 1

❥Answer♥࿐

Aɴ ᴀᴛᴏᴍ ɪꜱ ꜱᴛᴀʙʟᴇ ɪꜰ ᴛʜᴇ ꜰᴏʀᴄᴇꜱ ᴀᴍᴏɴɢ ᴛʜᴇ ᴘᴀʀᴛɪᴄʟᴇꜱ ᴛʜᴀᴛ ᴍᴀᴋᴇᴜᴘ ᴛʜᴇ ɴᴜᴄʟᴇᴜꜱ ᴀʀᴇ ʙᴀʟᴀɴᴄᴇᴅ. ᴀɴ ᴀᴛᴏᴍ ɪꜱ ᴜɴꜱᴛᴀʙʟᴇ (ʀᴀᴅɪᴏᴀᴄᴛɪᴠᴇ) ɪꜰ ᴛʜᴇꜱᴇ ꜰᴏʀᴄᴇꜱ ᴀʀᴇ ᴜɴʙᴀʟᴀɴᴄᴇᴅ; ɪꜰ ᴛʜᴇ ɴᴜᴄʟᴇᴜꜱ ʜᴀꜱ ᴀɴ ᴇxᴄᴇꜱꜱ ᴏꜰ ɪɴᴛᴇʀɴᴀʟ ᴇɴᴇʀɢʏ. ɪɴꜱᴛᴀʙɪʟɪᴛʏ ᴏꜰ ᴀɴ ᴀᴛᴏᴍ'ꜱ ɴᴜᴄʟᴇᴜꜱ ᴍᴀʏ ʀᴇꜱᴜʟᴛ ꜰʀᴏᴍ ᴀɴ ᴇxᴄᴇꜱꜱ ᴏꜰ ᴇɪᴛʜᴇʀ ɴᴇᴜᴛʀᴏɴꜱ ᴏʀ ᴘʀᴏᴛᴏɴꜱ.

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Answer 2

Answer:

$\huge \sf {\orange {\underline {\red{\underline {❥︎A᭄ɴsᴡᴇʀ࿐ :−}}}}}$

• An atøm is stable if the forces amóng the particles that makeúp the núcleus are balanced. An atøm is uñstable (radióactive) if these førces are unbalançed; if the núcleus has an exçess of internal energy. Ínstability of an atøm's núçleus may result from an exçess of either neutrøns or prøtons