like alkali metals,____ element combines with halogens, oxygen and sulphur to form compounds having similar formula
Answers
Answer:
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Answer:
Like alkali metals. hydrogen element combines with halogens, oxygen and sulphur to form compounds having similar formula.
Explanation:
The atomic number of hydrogen is 1, this indicates that hydrogen atom has 1 electron in its outermost shell. Thus hydrogen can either lose one electron or gain one electron to achieve stable octet.
Alkali metals have general electron configuration of ns¹, thus alkali metals too lose one electron to gain stable octet state.
Thus due to loss of an electron hydrogen shows similar chemical properties just like alkali metals.
Reactions of hydrogen with halogens, oxygen and sulphur:
(I) With halogens:
Hydrogen(H₂) reacts with chlorine molecules(Cl₂) to form hydrochloric acid(HCl)
H₂ + Cl₂ → 2HCl
(II) With oxygen:
Hydrogen(H₂) reacts with oxygen molecules(O₂) to give water(H₂O):
2H₂ + O₂ → 2H₂O
(III) With sulphur:
Hydrogen(H₂) reacts with molten sulphur to give hydrogen sulphide(H₂S)
H₂ + S → H₂S
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