H:Y: The Lewis representation above depicts a reaction between hydrogen (blue) and a main-group element from group (red). In this representation, each Y atom needs electron(s) to complete its octet, and gains these electrons by forming bond(s) with atoms of H. There are unshared electron pair(s) and The bonds in the product are [ Submit Answer K Ca Sc S Cs Ba La Retry Entire Group bonding electron pair(s) in the product molecule. 9 more group attempts remaining 3A 4A SA 6A 7A He BCNO F Ne SPSC Ar Zn Ga Ge As Ag Cd In Sn Sb Gd Tb Dy Ho Er Tm Yb Lu Cm Bk Cf Es Fm The element arsenic would be expected to form covalent bond(s) in order to obey the octet rule. Use the octet rule to predict the formula of the compound that would form between arsenic and hydrogen, if the molecule contains only one arsenic atom and only single bonds are formed.
Formal Charges
Formal charges have an important role in organic chemistry since this concept helps us to know whether an atom in a molecule is neutral/bears a positive or negative charge. Even if some molecules are neutral, the atoms within that molecule need not be neutral atoms.
Polarity Of Water
In simple chemical terms, polarity refers to the separation of charges in a chemical species leading into formation of two polar ends which are positively charged end and negatively charged end. Polarity in any molecule occurs due to the differences in the electronegativities of the bonded atoms. Water, as we all know has two hydrogen atoms bonded to an oxygen atom. As oxygen is more electronegative than hydrogen thus, there exists polarity in the bonds which is why water is known as a polar solvent.
Valence Bond Theory Vbt
Valence bond theory (VBT) in simple terms explains how individual atomic orbitals with an unpaired electron each, come close to each other and overlap to form a molecular orbital giving a covalent bond. It gives a quantum mechanical approach to the formation of covalent bonds with the help of wavefunctions using attractive and repulsive energies when two atoms are brought from infinity to their internuclear distance.
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