GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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two ions held together by opposite charges
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smaller than an atom
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can be physically separated into smaller atoms
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more than one atom bonded together by covalent bonds
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Detailed explanation-1: -A covalent bond consists of the mutual sharing of one or more pairs of electrons between two atoms. These electrons are simultaneously attracted by the two atomic nuclei. A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions.
Detailed explanation-2: -When atoms combine by forming covalent bonds, the resulting collection of atoms is called a molecule.
Detailed explanation-3: -A more or less stable grouping of two or more atoms held together by chemical bonds is called a molecule. The bonded atoms may be of the same element, as in the case of H2, which is called molecular hydrogen or hydrogen gas.
Detailed explanation-4: -A covalent molecule contains one or more covalent bonds.