Item 16 Write isotopic symbols of the form A Z X for each isotope. Part A the ni

Question

Item 16

Write isotopic symbols of the form AZX for each isotope.

Part A

the nitrogen isotope with 7 neutrons?

Express your answer as an isotope.

Part B

the silicon isotope with 14 neutrons?

Express your answer as an isotope.

Part C

the xenon isotope with 76 neutrons?

Express your answer as an isotope.

Item 16

Write isotopic symbols of the form AZX for each isotope.

Part A

the nitrogen isotope with 7 neutrons?

Express your answer as an isotope.

Part B

the silicon isotope with 14 neutrons?

Express your answer as an isotope.

Part C

the xenon isotope with 76 neutrons?

Express your answer as an isotope.

Explanation / Answer

part A

atomic mass = no of protons + no of neutrons

                    = 7 +7 = 14

7N14

part B

atomic mass = no of protons + no of neutrons

                      = 14 + 14 = 28

14Si28

part C

atomic mass = no of protons + no of neutrons

                     = 54+76 = 130

54Xe130

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