Question

1. fill in the following table that includes information on isotopes: isotope symbol isotope name atomic number atomic mass # of protons # of neutrons # of electrons in neutral atom ₆¹²c carbon - 6 12 6 6 6 magnesium - 26 ₁₆³⁴s calcium - 60

Explanation:

Step1: Recall isotope - naming convention

Isotopes are named by the element name followed by the mass number. For $^{12}_{6}C$, the mass number is 12, so it is Carbon - 12.

Step2: Recall atomic number property

The atomic number of an element is equal to the number of protons. For Magnesium (Mg), from the periodic table, the atomic number is 12. Its isotope Magnesium - 26 has atomic number 12, number of protons 12, number of neutrons = atomic mass - number of protons = 26 - 12=14, and in a neutral atom, number of electrons = number of protons = 12. The isotope symbol is $^{26}_{12}Mg$.

Step3: Analyze sulfur isotope

For $^{34}_{16}S$, the element is sulfur. The atomic number is 16 (from the sub - script), number of protons is 16, number of neutrons = 34 - 16 = 18, and in a neutral atom, number of electrons = 16. The isotope name is Sulfur - 34.

Step4: Analyze calcium isotope

For Calcium (Ca), from the periodic table, the atomic number is 20. For Calcium - 60, the atomic number is 20, number of protons is 20, number of neutrons = 60 - 20 = 40, and in a neutral atom, number of electrons = 20. The isotope symbol is $^{60}_{20}Ca$.

Isotope symbol	Isotope Name	Atomic number	Atomic mass	# of protons	# of neutrons	# of electrons in neutral atom
$^{26}_{12}Mg$	Magnesium - 26	12	26	12	14	12
$^{34}_{16}S$	Sulfur - 34	16	34	16	18	16
$^{60}_{20}Ca$	Calcium - 60	20	60	20	40	20

Answer:

Isotope symbol	Isotope Name	Atomic number	Atomic mass	# of protons	# of neutrons	# of electrons in neutral atom
$^{26}_{12}Mg$	Magnesium - 26	12	26	12	14	12
$^{34}_{16}S$	Sulfur - 34	16	34	16	18	16
$^{60}_{20}Ca$	Calcium - 60	20	60	20	40	20