Question

1. in addition to atomic symbol, we can represent atoms by name and mass number.

a) complete the table below:
b) each representation (symbol and name) in the table above provides information about the atom. describe the similarities and differences between the symbol and name representations.

Explanation:

Step1: Identify element names from symbols

• For the symbol \(^{18}_{9}F\), the element is Fluorine. The mass number is 18. So the name is Fluorine - 18.
• For the symbol \(^{11}_{5}B\), the element is Boron. The mass number is 11. So the name is Boron - 11.

Step2: Analyze similarities and differences

• Similarities:
• Both the symbol and the name representation provide information about the element (e.g., \(C\) in \(^{12}_{6}C^{+ 1}\) and "Carbon" in "Carbon - 12" refer to the same element).
• Both convey the mass number of the atom (e.g., 12 in \(^{12}_{6}C^{+1}\) and "Carbon - 12", 18 in \(^{18}_{9}F\) and "Fluorine - 18", 11 in \(^{11}_{5}B\) and "Boron - 11").
• Differences:
• The symbol provides additional information such as the atomic number (\(Z\), e.g., 6 for \(C\), 9 for \(F\), 5 for \(B\)) and the charge (e.g., \(^{+1}\) in \(^{12}_{6}C^{+1}\)), while the name representation (\(Element - mass\ number\)) does not provide atomic number and charge information.

Answer:

a)

Symbol	Name
\(^{18}_{9}F\)	Fluorine - 18
\(^{11}_{5}B\)	Boron - 11

b)

• Similarities: Both show the element and its mass number.
• Differences: The symbol shows atomic number and charge (if any), the name does not.