Which of the following is true about oxygen (o), sulfur (s) and neon (ne)? (choose 3)
a. oxygen and neon are in the same group and have the same number of valence electrons.
b. oxygen and sulfur are in the same period and have the same number of electron shells.
c. oxygen and neon are in the same period and have the same number of electron shells.
d. oxygen and sulfur have the same number of valence electrons.
e. oxygen and sulfur are most similar because they are in the same family and have similar chemical properties.
f. oxygen and neon have similar chemical properties.
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Which of the following is true about oxygen (o), sulfur (s) and neon (ne)? (choose 3)
a. oxyg...
a. oxyg...
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