Isotopes and Ions

     

    1) What is the charge on an ion that contains 47 protons, 62 neutrons, and 46 electrons?

(a) 1+

(b) 2+

(c) 3+

(d) 1-

(e) 2-

 

    2) Which of the following represents an atom having 19 protons, 19 electrons, and 21 neutrons?

(a) Zr-19

(b) K-40

(c) Zr-21

(d) Sc-40

(e) Sc-19

 

    3) What is the charge on an ion that contains 53 protons, 74 neutrons, and 54 electrons?

(a) 1+

(b) 2+

(c) 3+

(d) 1-

(e) 2-

 

    4) Which of the following represents an atom that has 26 protons, 26 electrons, and 32 neutrons?

(a) Ni-26

(b) Fe-58

(c) Ce-32

(d) Ge-58

(e) Fe-32

 

    5) What is the charge on an ion that contains 37 protons, 48 neutrons, and 36 electrons?

(a) 1+

(b) 2+

(c) 3+

(d) 1-

(e) 2-

 

    6) Which of the following represents an atom that has 53 protons, 53 electrons, and 72 neutrons?

(a) Te-72

(b) I-72

(c) I-125

(d) Hf-53

(e) I-53

 

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