How many valence electrons do a magnesium atom and a chlorine atom have? (1 point) Responses Magnesium has one valence electron and Chlorine has seven Magnesium has one valence electron and Chlorine has seven Magnesium has two valence electron and Chlorine has seven Magnesium has two valence electron and Chlorine has seven Magnesium has two valence electron and Chlorine has eight Magnesium has two valence electron and Chlorine has eight Magnesium has one valence electron and Chlorine has seventeen.
