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please get correct answers

EXTRA CREDIT FOR UNIT 2

Answer all many as you can, submit . It could be worth 9 points, if your answers are correct.

Element/ion

Atomic #

Mass number

Protons

Neutrons

Electrons

As³- (negative -3)

33

75

33

42

36

2412 Mg2-

12

24

12

12

10

Calculate the average atomic mass of the following unknown element. Fill in all the boxes and then identify the element by matching your calculated average atomic mass with an element on the periodic table.

Isotope

Atomic Mass(amu)

Abundance

Calculation

A-33

34.66

3%

A-34

35.76

95%

A-35

36.45

2%

Total________________

Element____________________

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