Why are electrons shared in molecular compounds

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Pre-Lab Study Questions 1. Where are the valence electrons in an atom? the atom 2. How are positive and negative ions formed? which is crented loy an ele 3. Why are electrons shared in molecular compounds? 4. How do the names of molecular compounds differ from the names of ionic compounds? 5. What are polyatomic ions? 6. How does the number of bonded atoms around a central atom determine its shape? Include examples in your answer Cu

Pre-Lab Study Questions 1. Where are the valence electrons in an atom? the atom 2. How are positive and negative ions formed? which is crented loy an ele 3. Why are electrons shared in molecular compounds? 4. How do the names of molecular compounds differ from the names of ionic compounds? 5. What are polyatomic ions? 6. How does the number of bonded atoms around a central atom determine its shape? Include examples in your answer Cu

Answer

tvlence Valence electrons are electrons in an atom the electrons that In bonol tanmation they ahe tsent in eutunmout hell of an atono exane- Since has electrons in outer shell which pantici pate in bond nmaton hence C ha 4 valence electrons

Valence electron in an atom: – valence electron are the electrons that participate in the bond formation they are present in outermost shell of an atom. For example: – 6^C: 2, 4 or 6^C: 1s^2 2s^2 2p^2 since it has 4 electrons in outer shell which participate in bond formation hence c has 4 valence electrons. rn positive ions: – when any atom donates electron it forms positive ion. For example: – in NaCl, Na donates and thus formed Na^+ which is positive ion. Negative ions: when any atom accepts electron it forms negative ion. For example: – In NaCl Na donates i.e. to the Cl thus Cl^- is formed which is a negative ion. rn why are electrons shared in molecular compounds ? every atom tends to complete its octet to get the stability thus atom forms bond. These bonds can be formed by [i] Donating or accepting electrons [ii] sharing the electrons. When two or more that two atoms share electrons equally

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