May I know if I was asked to write the equation for 1st IE of Hydrogen
do i write it this way
H(g) -> H+ (g) + e ?
2. How do I describe and explain the difference in 2nd I.E between Al+ (+1820 kJ/mol) and Si+ (+1580 kJ/mol)? Similarly, the difference in 1st IE for Ge (+762 kJ/mol) and As (+944 kJ/mol).
It will be fine if both questions are based on the same concept. In that case, you guys can just help me solve one so I can see how I am supposed to present the workings. Thank you
Originally posted by anpanman:May I know if I was asked to write the equation for 1st IE of Hydrogen
do i write it this way
H(g) -> H+ (g) + e ?
2. How do I describe and explain the difference in 2nd I.E between Al+ (+1820 kJ/mol) and Si+ (+1580 kJ/mol)? Similarly, the difference in 1st IE for Ge (+762 kJ/mol) and As (+944 kJ/mol).
It will be fine if both questions are based on the same concept. In that case, you guys can just help me solve one so I can see how I am supposed to present the workings. Thank you
Yes, your equation is fine (though you should write e- for an electron, not just e).
Al+ is isoelectronic with Mg, and Si+ is isoelectronic with Al. Why is the 1st I.E. of Al lower than that for Mg? The reason is the same for the 2nd I.E. of Al+ and Si+.
The increasing 1st I.E. for Ge and As isn't anomalous (ie. it's generally expected), so you shouldn't have a problem with it.