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16 Question (1 point) State which isotope corresponds to each description. Follow the specific directions on formatting. 1st attempt hi See Periodic Ta Part 1 (0.3 point) For Parts 1 and 2, write your answer using the format atom-A. Make sure to spell the name of the atom correctly! The isotope with 12 protons and 13 neutrons is Part 2 (0.3 point) The isotope with 7 protons and 7 neutrons is:

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Ryan

Expert ยท 3.2k answers ยท 3k people helped

Atomic number = number of protons

mass number = number of protons + number of neutrons

using atomic number we can identify the element from periodic table

part 1

number of protons = 12

number of neutrons=13

atomic number = 12

mass number = 12+13 =25

 

element  with atomic number  12 =  Magnesium

Magnesium- 12

_{12}^{25}\\textrm{Mg}

********************************************

number of protons = 7

number of neutrons= 7

atomic number = 7

element  with atomic number  7= Nitrogen

Nitrogen -7

mass number = 14

_{7}^{14}\\textrm{N}

*******************************************

number of protons = 17

number of neutrons= 20

atomic number = 17

mass number = 37

element  with atomic number  17 = Chlorine

_{17}^{37}\\textrm{Cl}

*************************************

number of protons = 19

number of neutrons= 20

atomic number = 19

element  with atomic number  19 = K

mass number Z=  39

^{_{19}^{39}\\textrm{K}}

***************

Thank you

 

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