Question
2. What is the fewest number of valence electrons an atom of a representative element can have? What is the greatest number of valence electrons an atom of a representative element can have? 3. Is it possible for an atom to have zero valence electrons at any time? Explain. 4. Why would non-valence electrons (that is, electrons in shells other than the valence shell) be much less likely to participate in a bond? 5. In grammatically correct English.write a few simple rules for determining the number of valence electrons for an atom of any representative element . When you finish, decide whether the same rules can apply to determining the valence electrons in a transition metal.
Solution
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Resposta
2. The fewest number of valence electrons an atom of a representative element can have is 1, and the greatest number of valence electrons an atom of a representative element can have is 7.3. It is not possible for an atom to have zero valence electrons at any time. Valence electrons are the electrons in the outermost shell of an atom, and they play a crucial role in determining the chemical properties of an element. Even the noble gases, which are known for their stability, have valence electrons.4. Non-valence electrons (electrons in shells other than the valence shell) are much less likely to participate in a bond because they are not as accessible to other atoms. Valence electrons are the electrons that are most likely to be involved in chemical reactions and bonding because they are the outermost electrons and are the farthest from the nucleus. Non-valence electrons are more tightly bound to the nucleus and are less likely to be involved in chemical reactions.5. Here are a few simple rules for determining the number of valence electrons for an atom of any representative element:- The number of valence electrons for an atom of a representative element is equal to the group number of the element in the periodic table.- For example, carbon is in group 14, so it has 4 valence electrons.- Oxygen is in group 16, so it has 6 valence electrons.- Fluorine is in group 17, so it has 7 valence electrons.These rules can apply to determining the valence electrons in a transition metal, but with some exceptions. Transition metals have partially filled d-orbitals, which can also participate in bonding. Therefore, the number of valence electrons for transition metals may not always be equal to the group number.