+91-9566306857  (or)  +91-9176170648

Ask Questions, Get Answers


The first ionization energy of an element is 736 kJ per mole of atoms. An atom of this element in the ground state has a total of how many valence electrons?

$ (a)\;1 \\(b)\;2 \\(c)\;3 \\ (d)\;4 $

1 Answer

$ 736 kJ/mol$ is the value for Mg.
Use the Periodic Table to find Mg.
It has 2 valence electrons.
Hence b is the correct answer.
answered Mar 15, 2014 by meena.p

Related questions