A metal which can form a predominantly Stable Covalent Halide of Formula $M X, X$ is:

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Metal that can form a predominantly stable covalent Halide of formula $M X$ .
It is an alkali metal with low first $I E$ . It can be $N a - C l, K C l,$ etc.

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Q. The metal which can form a predominantly stable covalent halide of the formula MX (X

=

halogen)?

Q. The first

(Δ_{i} H_{1})

and the second

(Δ_{i} H_{2})

ionization enthalpies (in kJ mol

^{- 1}

) and the

(Δ_{e g} H)

electron gain enthalpy (in kJ mol

^{- 1}

) of a few elements are given below:

Elements	$Δ H_{1}$	$Δ H_{2}$	$Δ_{e g}$ H
I	520	7300	-60
II	419	3051	-48
III	1681	3374	-328
IV	1008	1846	-295
V	2372	5251	+48
VI	738	1451	-40

Which of the above elements is likely to be :
(a) the least reactive element,
(b) the most reactive metal,
(c) the most reactive non-metal,
(d) the least reactive non-metal,
(e) the metal which can form a stable binary halide of the formula MX

_{2}

(X=halogen) and
(f) the metal which can form a predominantly stable covalent halide of the formula MX (X=halogen)?

The first (Δ_iH1) and the second (Δ_iH) ionization enthalpies (in kJ mol^–1) and the (Δ_egH) electron gain enthalpy (in kJ mol^–1) of a few elements are given below:

Elements	Δ_iH	Δ_iH	Δ_egH
I	520	7300	–60
II	419	3051	–48
III	1681	3374	–328
IV	1008	1846	–295
V	2372	5251	+48
VI	738	1451	–40

Which of the above elements is likely to be :

(a) the least reactive element.

(b) the most reactive metal.

(d) the least reactive non-metal.

(e) the metal which can form a stable binary halide of the formula MX₂, (X=halogen).

(f) the metal which can form a predominantly stable covalent halide of the formula MX (X=halogen)?

Q. A metal that forms a stable binary halide of formula

A X_{2}

(X = Halogen) is :

Among Alkaline earth metals, the element predominantly forming covalent compounds is:

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A metal which can form a predominantly Stable Covalent Halide of Formula MX,X is:

Metal that can form a predominantly stable covalent Halide of formula MX.It is an alkali metal with low first IE. It can be Na−Cl,KCl, etc.

A metal which can form a predominantly Stable Covalent Halide of Formula $M X, X$ is:

Metal that can form a predominantly stable covalent Halide of formula $M X$ .
It is an alkali metal with low first $I E$ . It can be $N a - C l, K C l,$ etc.