(a) What is the electronic configuration...

(a) What is the electronic configuration of (i) a sodium atom, and (ii) and oxygen atom ?
(b) What is the number of outermost electrons in (i) a sodium atom, and (ii) and oxygen atom?
(c) Show the formation of `Na_(2)O` by the transfer of electrons between the combining atoms.
(d) Why are ionic compounds usually hard ?
(e) How is it that ionic compounds in the solid state do not conduct electricity but they do so when in molten state ?

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LAKHMIR SINGH & MANJIT KAUR-METALS AND NON-METALS-Exercise

(a). Write down the electronic configuration of (i) Sodium atom, and (...
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(a). Write the electron arrangement in (i) a magnesium atom, and (ii) ...
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(a) What is the electronic configuration of (i) a sodium atom, and (ii...
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(a). Write down the electron arrangement in (i) a magnesium atom, and ...
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The atomic number of an element X is 19. The number of electrons in it...
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The atomic number of an element Y is 17. The number of electrons in it...
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The atomic numbers of four elements, A, B, C and D are 6, 8, 10 and 12...
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The atomic numbers of four elements P, Q, R and S are 6, 10, 12 and 17...
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The solution of one of the following compounds will not conduct electr...
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The electronic configuration of three elements X, Y and Z are : X:2 ...
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Which one of the following properties is not generally exhibited by io...
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The electrons present in the valence shell of a noble gas atom can be...
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The atomic number of an element X is 16. The symbol of ion formed by a...
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The number of protons in the nucleus of one atom of an element Y is 5....
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Out of KCl,HCl,C Cl(4) and NaCl, the compounds which are not ionic are...
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Element X reacts with element Y to form a compound Z, during the forma...
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One of the following compounds is not ionic in nature. This compound i...
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The rechargeable battery used in a mobile phone hand set is usually :
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The number of protons in one atom of an element X is 8. What will be t...
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If the number of protons in one atom of an element Y is 20, then the n...
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