Question

Determine the nuclear composition (number of protons and neutrons) of the following isotopes. (a) chlorine-35 protons...

Determine the nuclear composition (number of protons and neutrons) of the following isotopes.

(a) chlorine-35

protons

neutrons


(b) nickel-58

protons

neutrons


(c) silver-107

protons

neutrons


(d) barium-138

protons

neutrons


(e) lead-208

protons

neutrons
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Homework Answers

Answer #1

Solution:

Let us go to the basics first.

(a) chlorine-35

An atom of chlorine-35 contains 18 neutrons (17 protons + 18 neutrons = 35 particles in the nucleus) (Answer)

(b) nickel-58

An atom of nickel-58 contains 30 neutrons (28 protons + 30 neutrons = 58 particles in the nucleus) (Answer)

(c) silver-107

An atom of silver-107 contains 60 neutrons (47 protons + 60 neutrons = 107 particles in the nucleus) (Answer)

(d) barium-138

An atom of barium-138 contains 82 neutrons (56 protons + 82 neutrons = 138 particles in the nucleus) (Answer)

(e) lead-208

An atom of lead-208 contains 126 neutrons (82 protons + 126 neutrons = 208 particles in the nucleus) (Answer)

Thanks!!!

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