The first `(IE_1)` and the second `(IE_2)` ionisation enthalpies `(kJ mol^(-1))` of three elements are given below:
`{:(,I,II,III),(IE_1,403,549,1142),(IE_2,2640,1060,2080):}`
Identify the element which is likely to be:-
an alkali metal

The first (IE_1) and the second (IE_2) ionisation enthalpies (kJ mol^(-1)) of three elements are given below: {:(,I,II,III),(IE_1,403,549,1142),(IE_2,2640,1060,2080):} Identify the element which is likely to be:- an alkaline earth metal

The first (IE_1) and the second (IE_2) ionisation enthalpies (kJ mol^(-1)) of three elements are given below: {:(,I,II,III),(IE_1,403,549,1142),(IE_2,2640,1060,2080):} Identify the element which is likely to be:- a non metal

The (IE_(1)) and the (IE_(2)) in kJ mol^(-1) of a few eiements designated by Roman numberals are shown below. |{:(,I,II,III),(IE_(1),403,549,1142),(IE_(2),2640,1060,2080):}| Which of the above elements is likely to be a (a) non-metal (b) alkali metal (c ) alkaline earth metal?

The IE_(1) and IE_(2) (kJ mol^(-1)) of three elements A, B and C are given below : {:(,A,B,C,),(IE_(1),400,550,1150,),(IE_(2),2650,1070,2090,):} Identify the elements which represent (a) an alkali metal, (b) an alkaline earth metal or (c ) non-metal.

The first (IE_(1)) and second (IE_(2)) ionisation energies (kJ mol^(-1)) of a new element designated by roman numericals are shown below: {: (,(IE_(1)),(IE_(2))),(I,2372,5251),(II,520,7300),(III,900,1760),(IV,1680,3380):} Which of these elements is likely to be (a) a reactive metal, (b) a reactive non-metal, (c) a noble gas and (d) a metal that forms a binary halide of the formula, AX_(2) .

The first (IE_(1)) and second (IE_(2)) ionisation energies (k J mol^(-1)) of a new elements designated by roman numerals are shown below: {:(,,IE_(1),IE_(2),),(I,,2370,5250,),(II,,520,7300,),(III,,900,1800,),(IV,,1700,3400,):} Which of the above elements is likely to be : a. A reactive metal b. A reactive non-metal c. a noble gas d. A metal that forms a stable binary halide of the formula AX_(2) ( X= the halogen).

The first (IE_1) and second (IE_2) ionisation enthalpies ("kJ mol"^(-1)) of a few elements designated by Roman numerals are shown below. {:(,,IE_(1),IE_(2)),(,I,2372,5251),(,III,900,1760):} {:(,,IE_(1),IE_(2)),(,II,520,7300),(,IV,1680,3380):} Which of the above element is likely to be: a metal A that forms a stable binary halide of the formula AX_(2) ("X = halogen")