Question

exam 1: atomic theory/structure
possible points: 36 e7
fill out the following table:
isotope name nuclear symbol atomic number mass number # of protons # of neutrons # of electrons
calcium - 40 ₂₀⁴⁰ca 20
chlorine - 35 ₁₇³⁵cl
₇₉¹⁹⁷au 79 79

Explanation:

Step1: Recall atomic number = protons = electrons

For calcium - 40, mass number is 40, protons is 20. For chlorine - 35, atomic number is 17, mass number is 35, protons is 17, electrons is 17. For gold - 197, name is gold - 197, atomic number is 79, mass number is 197, neutrons is 197 - 79 = 118.

Answer:

Isotope Name	Nuclear Symbol	Atomic Number	Mass Number	# of protons	# of neutrons	# of electrons
chlorine - 35	$_{17}^{35}$Cl	17	35	17	18	17
gold - 197	$_{79}^{197}$Au	79	197	79	118	79