3
QuizMultiple Choice
Elements
Question 3 • AZ-Physical Science A-CR
The simple model below is a neutral magnesium (Mg) atom with the element’s most common mass number.
Answer
A
It must lose two neutrons and become a different isotope.B
It must gain two neutrons and become a different isotope.C
It must lose two electrons and become an ion.D
It must gain two electrons and become an ion.