QUESTION IMAGE
Question
complete the table below by using the information from the periodic table on the previous page.
element | symbol | atomic number | # of protons | # of electrons | # of energy levels | period
argon | | | | | |
carbon | | | | | |
helium | | | | | |
lithium | | | | | |
oxygen | | | | | |
sulfur | | | | | |
silicon | | | | | |
sodium | | | | | |
To complete the table, we use the following rules from the Periodic Table:
- Symbol: The chemical symbol of the element.
- Atomic Number: Equal to the number of protons (and electrons in a neutral atom).
- # of Protons: = Atomic Number (for neutral atoms).
- # of Electrons: = Atomic Number (for neutral atoms).
- # of Energy Levels: The period number (row in the Periodic Table) = number of energy levels.
- Period: The row number in the Periodic Table.
Step 1: Argon
- Symbol: $\text{Ar}$
- Atomic Number: $18$ (from Periodic Table)
- # of Protons: $18$ (atomic number = protons)
- # of Electrons: $18$ (neutral atom, electrons = protons)
- # of Energy Levels: $3$ (Period 3)
- Period: $3$
Step 2: Carbon
- Symbol: $\text{C}$
- Atomic Number: $6$
- # of Protons: $6$
- # of Electrons: $6$
- # of Energy Levels: $2$ (Period 2)
- Period: $2$
Step 3: Helium
- Symbol: $\text{He}$
- Atomic Number: $2$
- # of Protons: $2$
- # of Electrons: $2$
- # of Energy Levels: $1$ (Period 1)
- Period: $1$
Step 4: Lithium
- Symbol: $\text{Li}$
- Atomic Number: $3$
- # of Protons: $3$
- # of Electrons: $3$
- # of Energy Levels: $2$ (Period 2)
- Period: $2$
Step 5: Oxygen
- Symbol: $\text{O}$
- Atomic Number: $8$
- # of Protons: $8$
- # of Electrons: $8$
- # of Energy Levels: $2$ (Period 2)
- Period: $2$
Step 6: Sulfur
- Symbol: $\text{S}$
- Atomic Number: $16$
- # of Protons: $16$
- # of Electrons: $16$
- # of Energy Levels: $3$ (Period 3)
- Period: $3$
Step 7: Silicon
- Symbol: $\text{Si}$
- Atomic Number: $14$
- # of Protons: $14$
- # of Electrons: $14$
- # of Energy Levels: $3$ (Period 3)
- Period: $3$
Step 8: Sodium
- Symbol: $\text{Na}$
- Atomic Number: $11$
- # of Protons: $11$
- # of Electrons: $11$
- # of Energy Levels: $3$ (Period 3)
- Period: $3$
Final Table (Filled):
| Element | Symbol | Atomic Number | # of Protons | # of Electrons | # of Energy Levels | Period |
|---|---|---|---|---|---|---|
| Carbon | $\text{C}$ | $6$ | $6$ | $6$ | $2$ | $2$ |
| Helium | $\text{He}$ | $2$ | $2$ | $2$ | $1$ | $1$ |
| Lithium | $\text{Li}$ | $3$ | $3$ | $3$ | $2$ | $2$ |
| Oxygen | $\text{O}$ | $8$ | $8$ | $8$ | $2$ | $2$ |
| Sulfur | $\text{S}$ | $16$ | $16$ | $16$ | $3$ | $3$ |
| Silicon | $\text{Si}$ | $14$ | $14$ | $14$ | $3$ | $3$ |
| Sodium | $\text{Na}$ | $11$ | $11$ | $11$ | $3$ | $3$ |
(Note: This table is completed using fundamental Periodic Table properties: atomic number = protons = electrons (neutral), period = energy levels.)
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To complete the table, we use the following rules from the Periodic Table:
- Symbol: The chemical symbol of the element.
- Atomic Number: Equal to the number of protons (and electrons in a neutral atom).
- # of Protons: = Atomic Number (for neutral atoms).
- # of Electrons: = Atomic Number (for neutral atoms).
- # of Energy Levels: The period number (row in the Periodic Table) = number of energy levels.
- Period: The row number in the Periodic Table.
Step 1: Argon
- Symbol: $\text{Ar}$
- Atomic Number: $18$ (from Periodic Table)
- # of Protons: $18$ (atomic number = protons)
- # of Electrons: $18$ (neutral atom, electrons = protons)
- # of Energy Levels: $3$ (Period 3)
- Period: $3$
Step 2: Carbon
- Symbol: $\text{C}$
- Atomic Number: $6$
- # of Protons: $6$
- # of Electrons: $6$
- # of Energy Levels: $2$ (Period 2)
- Period: $2$
Step 3: Helium
- Symbol: $\text{He}$
- Atomic Number: $2$
- # of Protons: $2$
- # of Electrons: $2$
- # of Energy Levels: $1$ (Period 1)
- Period: $1$
Step 4: Lithium
- Symbol: $\text{Li}$
- Atomic Number: $3$
- # of Protons: $3$
- # of Electrons: $3$
- # of Energy Levels: $2$ (Period 2)
- Period: $2$
Step 5: Oxygen
- Symbol: $\text{O}$
- Atomic Number: $8$
- # of Protons: $8$
- # of Electrons: $8$
- # of Energy Levels: $2$ (Period 2)
- Period: $2$
Step 6: Sulfur
- Symbol: $\text{S}$
- Atomic Number: $16$
- # of Protons: $16$
- # of Electrons: $16$
- # of Energy Levels: $3$ (Period 3)
- Period: $3$
Step 7: Silicon
- Symbol: $\text{Si}$
- Atomic Number: $14$
- # of Protons: $14$
- # of Electrons: $14$
- # of Energy Levels: $3$ (Period 3)
- Period: $3$
Step 8: Sodium
- Symbol: $\text{Na}$
- Atomic Number: $11$
- # of Protons: $11$
- # of Electrons: $11$
- # of Energy Levels: $3$ (Period 3)
- Period: $3$
Final Table (Filled):
| Element | Symbol | Atomic Number | # of Protons | # of Electrons | # of Energy Levels | Period |
|---|---|---|---|---|---|---|
| Carbon | $\text{C}$ | $6$ | $6$ | $6$ | $2$ | $2$ |
| Helium | $\text{He}$ | $2$ | $2$ | $2$ | $1$ | $1$ |
| Lithium | $\text{Li}$ | $3$ | $3$ | $3$ | $2$ | $2$ |
| Oxygen | $\text{O}$ | $8$ | $8$ | $8$ | $2$ | $2$ |
| Sulfur | $\text{S}$ | $16$ | $16$ | $16$ | $3$ | $3$ |
| Silicon | $\text{Si}$ | $14$ | $14$ | $14$ | $3$ | $3$ |
| Sodium | $\text{Na}$ | $11$ | $11$ | $11$ | $3$ | $3$ |
(Note: This table is completed using fundamental Periodic Table properties: atomic number = protons = electrons (neutral), period = energy levels.)