B. An element with eight valence electrons is chemically unstable.
It would be unstable only with one to seven valence electrons, not eight.
Which of the following statements is not true of using electron dot diagrams?
A. The element's group number provides a clue about the number of valence electrons. B. An element with eight valence electrons is chemically unstable.
C. Dots should be placed one at a time on each side of the chemical symbol.
D. An atom is chemically stable if all dots are paired.
1 answer