Question

which of the following has largest negative electron gain enthalpy*
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Answer 1

Answer :↦

➢Hᴀʟᴏɢᴇɴꜱ.

• ʜᴀʟᴏɢᴇɴꜱ ʜᴀᴠᴇ ᴛʜᴇ ʟᴀʀɢᴇꜱᴛ ɴᴇɢᴀᴛɪᴠᴇ ᴇʟᴇᴄᴛʀᴏɴ ɢᴀɪɴ ᴇɴᴛʜᴀʟᴘʏ ᴀɴᴅ ᴛʜɪꜱ ᴅᴇᴄʀᴇᴀꜱᴇꜱ ᴅᴏᴡɴ ᴛʜᴇ ɢʀᴏᴜᴘ. ᴄʜʟᴏʀɪɴᴇ ʜᴀꜱ ᴛʜᴇ ʜɪɢʜᴇꜱᴛ ᴇʟᴇᴄᴛʀᴏɴ ɢᴀɪɴ ᴇɴᴛʜᴀʟᴘʏ ʙᴇᴄᴀᴜꜱᴇ ꜰʟᴜᴏʀɪɴᴇ ɪꜱ ꜱᴍᴀʟʟᴇʀ ɪɴ ꜱɪᴢᴇ ᴀɴᴅ ᴇxᴛʀᴀ ᴀᴅᴅɪᴛɪᴏɴ ᴏꜰ ᴇʟᴇᴄᴛʀᴏɴ ᴄᴀᴜꜱᴇꜱ ɪɴᴛᴇʀᴇʟᴇᴄᴛʀᴏɴɪᴄ ʀᴇᴘᴜʟꜱɪᴏɴꜱ ɪɴ ᴀɴ ᴀᴛᴏᴍ.

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Answer 2

Answer:

Halogens

• HalogensHalogens have the largest negative electron gain enthalpy and this decreases down the group. Chlorine has the highest electron gain enthalpy because fluorine is smaller in size and extra addition of electron causes interelectronic repulsions in an atom

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