Explanation:
Z = atomic mass of the element and , A = atomic mass of the element .
a) Z = 11, A = 23
Element = Sodium
symbol: ²³₁₁Na .
b) Z = 28, A = 64
Element = Nickel
symbol: ⁶⁴₂₈Ni .
c) Z = 50, A = 115
Element = tin
symbol: ¹¹⁵₅₀Sn .
d) Z = 20, A = 42
Element = Calcium
symbol: ⁴²₂₀Ca .
Answer:
(a) [tex]^{23}_{11}Na[/tex]
(b) [tex]^{64}_{28}Ni[/tex]
(c) [tex]^{115}_{50}Sn[/tex]
(d) [tex]^{42}_{20}Ca[/tex]
Explanation:
Hello,
In this case, Z stands for the isotope's atomic number and A for the isotope's atomic mass, in such a way, looking for each isotope one concludes that the proper symbol, in the form of [tex]^{A}_{Z}Element[/tex] turn out being:
(a) [tex]^{23}_{11}Na[/tex]
(b) [tex]^{64}_{28}Ni[/tex]
(c) [tex]^{115}_{50}Sn[/tex]
(d) [tex]^{42}_{20}Ca[/tex]
Best regards.
