The atomic no. of 'x' is 17 predict it's
(i)Valeney
(ii)Formula of its hydride
(iii) Type of ion formed
(iv) Type of compound formed with metals.
(v)Formula of its oxide.
Answers
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Answer:
Atomic number is 17 that is chlorine
Valency: -1
Hydride is ClH
Ion :anion
It forms chloride(halides) with metals that is ionic compounds.
Its formula with oxide Is Cl2O
Explanation:
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The answer to the following questions are:
(i) The valency of X is one (1).
- The electronic configuration of X (17) = 1s2, 2s2, 2p6, 3s2, 3p5.
- It only requires 1 electron, so its valency is 1.
(ii) The formula of its hydride is HX.
- As it only requires one electron to form a bond, it shares an electron with one H atom to form HX.
(iii) An anion is formed by X, i.e., X⁻.
- It accepts one electron to form an anion.
(iv) It forms ionic compounds with metals.
- The element X accepts electrons from metals and forms ionic compounds with metals.
(v) The formula of its oxide is X2O.
- As its valency is 1, two of its atoms reacts with 1 oxygen atom.
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