CU7: Finding the PEN

The most common isotope of Carbon (C) has...

• P = 6

  E = 6

  N = 6

• P = 12

  E = 12

  N = 6

• P = 6

  E = 6

  N = 12

• P = 6

  E = 12

  N = 6

The most common isotope of Copper (Cu) has...

• P = 29

  E = 29

  N = 35

• P = 29

  E = 29

  N = 34

• P = 64

  E = 64

  N = 29

• P = 64

  E = 29

  N = 29

The most common isotope of Aluminum (Al) has...

• P = 13

  E = 13

  N = 14

• P = 13

  E = 13

  N = 13

• P = 27

  E = 27

  N = 13

• P = 27

  E = 13

  N = 13

The most common isotope of Silicon (Si) has...

• P = 14

  E = 14

  N = 14

• P = 14

  E = 14

  N = 28

• P = 28

  E = 14

  N = 14

• P = 28

  E = 28

  N = 14

The most common isotope of Fluorine (F) has...

• P = 9

  E = 9

  N = 10

• P = 19

  E = 19

  N = 9

• P = 9

  E = 9

  N = 19

• P = 9

  E = 19

  N = 19

The most common isotope of Chlorine (Cl) has...

• P = 17

  E = 17

  N = 18

• P = 17

  E = 17

  N = 19

• P =35

  E = 35

  N = 17

• P = 17

  E = 17

  N = 35

The most common isotope of Argon (Ar) has...

• P = 18

  E = 18

  N = 22

• P = 18

  E = 18

  N = 21

• P = 18

  E = 18

  N = 40

• P = 40

  E = 40

  N = 18

The most common isotope of Krypton (Kr) has...

• P = 36

  E = 36

  N = 48

• P = 36

  E = 36

  N = 47

• P = 36

  E = 36

  N = 84

• P = 84

  E = 84

  N = 36

The most common isotope of Xenon (Xe) has...

• P = 54

  E = 54

  N = 77

• P = 54

  E = 54

  N = 78

• P = 54

  E = 54

  N = 131

• P = 131

  E = 131

  N = 54

The most common isotope of Cobalt (Co) has...

• P = 27

  E = 27

  N = 32

• P = 27

  E = 27

  N = 31

• P = 27

  E = 27

  N = 59

• P = 59

  E = 59

  N = 27