GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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gain 1
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lose 1
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gain 3
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lose 3
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Detailed explanation-1: -The tendency is for sodium to lose an electron so that the new resulting valence shell (2) is in its most stable state (full octet). This loss of an electron results in the ionization of sodium, to form the positively charged ion Na+.
Detailed explanation-2: -A neutral sodium (Na) atom loses one electron to form a sodium ion (Na+) with a charge of 1+ (see Table 2.8). A positive ion, or cation, has the same name as the element.
Detailed explanation-3: -Sodium loses an electron, leaving it with 11 protons, but only 10 electrons. Since it has 1 more proton than electrons, sodium has a charge of +1, making it a positive ion.
Detailed explanation-4: -An ionic bond is the force of attraction that holds together positive and negative ions. It forms when atoms of a metallic element give up electrons to atoms of nonmetallic elements. An atom of sodium (Na) donates an electron to an atom of chlorine (Cl). By losing an electron, the sodium atom becomes a sodium ion.
Detailed explanation-5: -A neutral sodium atom, for example, contains 11 protons and 11 electrons. By removing an electron from this atom we get a positively charged Na+ ion that has a net charge of +1. Atoms that gain extra electrons become negatively charged.