(a)
Interpretation:
A formula for an ionic compound should be given using only P, Br and Mg.
Concept introduction:
Ionic bonds form due to the complete loss or gain of one or more electrons resulting in cations and anions. They are held together by electrostatic interactions. In most cases, bonds form between two atoms are not completely ionic but have some covalent character. The magnitude of covalent character and ionic character is determined by the difference between electronegativity of the two atoms. Higher the difference, higher the ionic character.
(b)
Interpretation:
The formula of the molecular compound having polar covalent bonds needs to be determined. The molecular compound obeys the octet rule and there is no formal charge on it. Concept introduction:
When an atom has a different number of electrons than the number of valence electrons, then the atom has either gained or removed electrons. So, that particular atom bears a formal charge. The formal charge can be calculated by following formula.
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EBK CHEMISTRY
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- Which of the following statements are true regarding an ionic bond between calcium and oxygen in an CaO formula unit? (a) Calcium ions and oxide ions bond by covalent attraction. (b) Calcium atoms lose electrons and oxygen atoms gain electrons. (c) The ionic radius of a calcium ion is less than its atomic radius. (d) Breaking an ionic bond between calcium and oxygen releases energy.arrow_forwardWrite an electron configuration for each element and the corresponding Lewis structure. Indicate which electrons in the electron configuration are included in the Lewis structure.(a) N(b) C(c) Cl(d) Ararrow_forward(a) State the octet rule. (b) Does the octet rule apply to ionic as well as to covalent compounds? Explain, using examples as appropriatearrow_forward
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