Question

Need urgent help please!!!!

Answer 1

IE1,IE2 are the respective ionisation enthalpies of elements A,B,C and D

Answer 2

Which of the above is likely to be:
A reactive metal
A reactive non metal
A noble gas
A metal that forms binary halide of the formula AX2

Answer 3

As you know noble gases have high ionization energy because it already has full valence electron (Octet rule is achieved).

Ionization energy is the energy required to remove a valence electron.
Noble gases requires high energy to remove electrons because it has all 8 electrons at the outermost shell.

A. for noble gases

Answer 4

B. for reactive metal (Alkali metal) because all group 1 metals have only 1 valence electron, so, it takes very little energy to remove that electron. After removing that electron, the alkali metal has 8 valence electrons.
Example:

Before removing:
2.8.8.1

After removing:
2.8.8

So, for the second removal of electron, (Also called second Ionization energy) is huge. Because it has full octet.

Answer 5

thanks got it!!

Answer 6

Apply this chart for the other two