Question

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Compare 2nd Ionisation Energy of elements in period second ?

✌_____pleEch

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Answer 1

$\Huge\bf\underline{\underline{\red{Answer}}}$

The second ionization energy ( IE2 ) is the energy required to remove an electron from a 1+ cation in the gaseous state. ... We would expect second ionization energies to increase from left to right as the ionic size decreases.

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Answer 2

ᴛʜᴇ ꜱᴇᴄᴏɴᴅ ɪᴏɴɪꜱᴀᴛɪᴏɴ ᴇɴᴇʀɢʏ ᴍᴇᴀɴꜱ ᴛʜᴇ ᴇɴᴇʀɢʏ ʀᴇQᴜɪʀᴇᴅ ᴛᴏ ʀᴇᴍᴏᴠᴇ ᴛʜᴇ ᴇʟᴇᴄᴛʀᴏɴ ꜰʀᴏᴍ ᴛʜᴇ ᴄᴏʀʀᴇꜱᴘᴏɴᴅɪɴɢ ᴍᴏɴᴏᴠᴀʟᴇɴᴛ ᴄᴀᴛɪᴏɴ ᴏꜰ ᴛʜᴇ ʀᴇꜱᴘᴇᴄᴛɪᴠᴇ ᴀᴛᴏᴍ. ꜰꜰ ᴏʀ ᴇ2 ᴇʟᴇᴄᴛʀᴏɴɪᴄ ᴄᴏɴꜰɪɢᴜʀᴀᴛɪᴏɴ ᴏꜰ

$C+,N+,O+ and F+- \: ions \: \: which \: \: are \: \: as \: \: follows</p><p></p><p>$

$C+=2s2,2p1</p><p></p><p>$

$N+=2s2,2p2</p><p></p><p>$

$O+=2s2,2p3 \\ \\ </p><p>F+=2s2,2p4.</p><p></p><p>$

$∵ O+  \: is \: half-filed \: configuration, \: obviously \: it \: is most \: stable \: and \: greater \: ionisation \: energy \: than \:  F+ as \: well \: as  \: N+.</p><p></p><p>$

ᴛʜᴇ ɪᴏɴɪꜱᴀᴛɪᴏɴ ᴇɴᴇʀɢʏ ᴏꜰ ᴀɴ ᴇʟᴇᴍᴇɴᴛ ᴅᴇᴘᴇɴᴅꜱ ᴜᴘᴏɴ ɪᴛꜱ ꜱɪᴢᴇ ᴀꜱ. ʜᴇɴᴄᴇ, ᴄᴏʀʀᴇᴄᴛ ᴏʀᴅᴇʀ ᴡɪʟʟ ʙᴇ, ᴏ>ꜰ>ɴ>ᴄ.