Answered

Period: 2

\begin{tabular}{|c|c|c|c|c|c|c|c|c|}
\hline
& Element & Atomic \# & Mass \# & \begin{tabular}{l}
Isotopic \\
Symbol
\end{tabular} & \# [tex]$p ^{+}$[/tex] & \# [tex]$e ^{-}$[/tex] & \# [tex]$n^{\circ}$[/tex] & \begin{tabular}{l}
Atomic \\
(amu)
\end{tabular} \\
\hline
1 & fluorine & 9 & 19 & & 9 & 9 & 10 & 19 \\
\hline
2 & scandium & 21 & 45 & [tex]${ }_{21}^{45} Sc$[/tex] & 21 & 21 & 24 & 45 \\
\hline
3 & arsenic & 33 & 66 & & 33 & 33 & 33 & 66 \\
\hline
4 & argon & 18 & 38 & & 18 & 18 & 20 & 38 \\
\hline
5 & & 18 & 39 & & 18 & 18 & 21 & 39 \\
\hline
6 & cobalt & 27 & 59 & [tex]${ }_{27}^{59} Co$[/tex] & 27 & 27 & 32 & 59 \\
\hline
7 & neon & 10 & 20 & [tex]${ }_{10}^{20} Ne$[/tex] & 10 & 10 & 10 & 20 \\
\hline
8 & ruthenium & 44 & 102 & [tex]${ }_{44}^{102} Ru$[/tex] & 44 & 44 & 58 & 102 \\
\hline
9 & cadmium & 48 & 112 & [tex]${ }_{48}^{112} Cd$[/tex] & 48 & 48 & 64 & 112 \\
\hline
10 & tin & 50 & 120 & [tex]${ }_{50}^{120} Sn$[/tex] & 50 & 50 & 70 & 120 \\
\hline
11 & iridium & 77 & 191 & [tex]${ }_{77}^{191} Ir$[/tex] & 77 & 77 & 114 & 191 \\
\hline
12 & tungsten & 74 & 184 & [tex]${ }_{74}^{184} W$[/tex] & 74 & 74 & 110 & 184 \\
\hline
13 & mercury & 80 & 200 & [tex]${ }_{80}^{200} Hg$[/tex] & 80 & 80 & 120 & 200 \\
\hline
14 & thorium & 90 & 232 & [tex]${ }_{90}^{232} Th$[/tex] & 90 & 90 & 142 & 232 \\
\hline
15 & oganesson & 118 & 294 & [tex]${ }_{118}^{294} Og$[/tex] & 118 & 118 & 176 & 294 \\
\hline
\end{tabular}



Answer :

GinnyAnswer
Certainly! Let's fill out the table with the calculated values:

```markdown
Period: 2
\begin{tabular}{|c|c|c|c|c|c|c|c|c|}
\hline & Element & Atomic \# & Mass \# & \begin{tabular}{l}
Isotopic \\
Symbol
\end{tabular} & \# [tex]$p ^{+}$[/tex] & [tex]$\# e ^{-}$[/tex] & [tex]$\# n^{\circ}$[/tex] & \begin{tabular}{l}
Atomic \\
(amu)
\end{tabular} \\
\hline 1 & fluorine & 9 & 19 & [tex]${ }_{9}^{19}F$[/tex] & 9 & 9 & 10 & 19 \\
\hline 2 & Scondum & 21 & 45 & [tex]${ }_{21}^{45} Sc$[/tex] & 21 & 21 & 24 & 45 \\
\hline 3 & arsentic & 33 & 66 & [tex]${ }_{33}^{66}As$[/tex] & 33 & 33 & 41 & 66 \\
\hline 4 & argen & 18 & 38 & [tex]${ }_{18}^{38}Ar$[/tex] & 18 & 18 & 20 & 38 \\
\hline 5 & & 18 & 39 & [tex]${ }_{18}^{39}Ar$[/tex] & 18 & 18 & 21 & 39 \\
\hline 6 & & 27 & 59 & [tex]${ }_{27}^{59}Co$[/tex] & 27 & 27 & 32 & 59 \\
\hline 7 & & & & [tex]${ }^{7 n}{ }_{ne}$[/tex] & & & & \\
\hline 8 & ruthenium & 44 & 102 & [tex]${ }_{44}^{102}Ru$[/tex] & 44 & 44 & 58 & 102 \\
\hline 9 & & 48 & 112 & [tex]${ }_{48}^{112}Cd$[/tex] & 48 & 48 & 64 & 112 \\
\hline 10 & & & & [tex]${ }^{135} Cs$[/tex] & 55 & 55 & 80 & 135 \\
\hline 11 & & 77 & 191 & [tex]${ }_{77}^{191}Ir$[/tex] & 77 & 77 & 114 & 191 \\
\hline 12 & & 74 & 183 & [tex]${ }_{74}^{183}W$[/tex] & 74 & 74 & 109 & 183 \\
\hline 13 & mercury & 80 & 200 & [tex]${ }_{80}^{200}Hg$[/tex] & 80 & 80 & 119 & 200 \\
\hline 14 & & 90 & 232 & [tex]${ }_{90}^{232}Th$[/tex] & 90 & 90 & 142 & 232 \\
\hline 15 & & 118 & 294 & [tex]${ }_{118}^{294}Og$[/tex] & 118 & 118 & 176 & 294 \\
\hline
\end{tabular}
```

Let's go row by row and explain the entries:

1. Fluorine:
- Atomic Number (#p⁺): 9 (also number of electrons, #e⁻)
- Mass Number: 19
- Neutrons (#n⁰): 10 (19 - 9)
- Isotopic Symbol: [tex]\( ^{19}_{9}F \)[/tex]
- Atomic Mass: 19 amu

2. Scondum:
- Atomic Number (#p⁺): 21 (also number of electrons, #e⁻)
- Mass Number: 45
- Neutrons (#n⁰): 24 (45 - 21)
- Isotopic Symbol: [tex]\( ^{45}_{21}Sc \)[/tex]
- Atomic Mass: 45 amu

3. Arsentic:
- Atomic Number (#p⁺): 33 (also number of electrons, #e⁻)
- Mass Number: 66
- Neutrons (#n⁰): 41 (66 - 33)
- Isotopic Symbol: [tex]\( ^{66}_{33}As \)[/tex]
- Atomic Mass: 66 amu

4. Argen:
- Atomic Number (#p⁺): 18 (also number of electrons, #e⁻)
- Mass Number: 38
- Neutrons (#n⁰): 20 (38 - 18)
- Isotopic Symbol: [tex]\( ^{38}_{18}Ar \)[/tex]
- Atomic Mass: 38 amu

5. Unknown 1:
- Atomic Number (#p⁺): 18 (also number of electrons, #e⁻)
- Mass Number: 39
- Neutrons (#n⁰): 21 (39 - 18)
- Isotopic Symbol: [tex]\( ^{39}_{18}Ar \)[/tex]
- Atomic Mass: 39 amu

6. Unknown 2:
- Atomic Number (#p⁺): 27 (also number of electrons, #e⁻)
- Mass Number: 59
- Neutrons (#n⁰): 32 (59 - 27)
- Isotopic Symbol: [tex]\( ^{59}_{27}Co \)[/tex]
- Atomic Mass: 59 amu

7. Unknown 3:
- Data not given for element here

8. Ruthenium:
- Atomic Number (#p⁺): 44 (also number of electrons, #e⁻)
- Mass Number: 102
- Neutrons (#n⁰): 58 (102 - 44)
- Isotopic Symbol: [tex]\( ^{102}_{44}Ru \)[/tex]
- Atomic Mass: 102 amu

9. Unknown 4:
- Atomic Number (#p⁺): 48 (also number of electrons, #e⁻)
- Mass Number: 112
- Neutrons (#n⁰): 64 (112 - 48)
- Isotopic Symbol: [tex]\( ^{112}_{48}Cd \)[/tex]
- Atomic Mass: 112 amu

10. Unknown 5:
- Data not provided for the element here

11. Unknown 6:
- Atomic Number (#p⁺): 77 (also number of electrons, #e⁻)
- Mass Number: 191
- Neutrons (#n⁰): 114 (191 - 77)
- Isotopic Symbol: [tex]\( ^{191}_{77}Ir \)[/tex]
- Atomic Mass: 191 amu

12. Unknown 7:
- Atomic Number (#p⁺): 74 (also number of electrons, #e⁻)
- Mass Number: 183
- Neutrons (#n⁰): 109 (183 - 74)
- Isotopic Symbol: [tex]\( ^{183}_{74}W \)[/tex]
- Atomic Mass: 183 amu

13. Mercury:
- Atomic Number (#p⁺): 80 (also number of electrons, #e⁻)
- Mass Number: 200
- Neutrons (#n⁰): 119 (200 - 80)
- Isotopic Symbol: [tex]\( ^{200}_{80}Hg \)[/tex]
- Atomic Mass: 200 amu

14. Unknown 8:
- Atomic Number (#p⁺): 90 (also number of electrons, #e⁻)
- Mass Number: 232
- Neutrons (#n⁰): 142 (232 - 90)
- Isotopic Symbol: [tex]\( ^{232}_{90}Th \)[/tex]
- Atomic Mass: 232 amu

15. Unknown 9:
- Atomic Number (#p⁺): 118 (also number of electrons, #e⁻)
- Mass Number: 294
- Neutrons (#n⁰): 176 (294 - 118)
- Isotopic Symbol: [tex]\( ^{294}_{118}Og \)[/tex]
- Atomic Mass: 294 amu

The table entries now include all the calculated data for each element or unknown provided in the question.

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