Question

the first ionization enthalpy value of the third period element ,Na,mg ,and si are respectively 496,737,and 786 kj mol_1 predict wheather the ionization enthalpy for Al will be more close to 575 kJ mol-1 justify your answer​

Answer 1

Answer:

Yes 578kj

Explanation:

Becase half filled so less than mg

Answer 2

$\huge\boxed{\underline{\mathcal{\red{A}\green{N}\pink{S}\orange{W}\blue{E}\purple{R}}}}$

• It will be more close to ${575kJmol^-1}$ The value for ${Al}$ should be lower that that of ${MG}$ because of effective sheilding of ${3p}$ electrons from the nucleus by ${3s}$ _electrons.