Question

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element
name
element symbol
atomic number
period
group number
valence electron
helium
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sodium
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aluminum
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potassium
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carbon
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sulfur
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Explanation:

Helium

• Element Symbol: Helium is represented as \(He\) in the periodic table.
• Atomic Number: The atomic number of helium is \(2\) (number of protons).
• Period: Helium is in period \(1\) (first row of the periodic table).
• Group Number: Helium is in group \(18\) (noble gases group).
• Valence Electron: Helium has \(2\) valence electrons (its electron configuration is \(1s^{2}\)).

Sodium

• Element Symbol: Sodium is represented as \(Na\) (from its Latin name natrium).
• Atomic Number: The atomic number of sodium is \(11\).
• Period: Sodium is in period \(3\).
• Group Number: Sodium is in group \(1\) (alkali metals group).
• Valence Electron: Sodium has \(1\) valence electron (electron configuration \(1s^{2}2s^{2}2p^{6}3s^{1}\)).

Aluminum

• Element Symbol: Aluminum is represented as \(Al\).
• Atomic Number: The atomic number of aluminum is \(13\).
• Period: Aluminum is in period \(3\).
• Group Number: Aluminum is in group \(13\).
• Valence Electron: Aluminum has \(3\) valence electrons (electron configuration \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{1}\)).

Potassium

• Element Symbol: Potassium is represented as \(K\) (from its Latin name kalium).
• Atomic Number: The atomic number of potassium is \(19\).
• Period: Potassium is in period \(4\).
• Group Number: Potassium is in group \(1\).
• Valence Electron: Potassium has \(1\) valence electron (electron configuration \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{1}\)).

Carbon

• Element Symbol: Carbon is represented as \(C\).
• Atomic Number: The atomic number of carbon is \(6\).
• Period: Carbon is in period \(2\).
• Group Number: Carbon is in group \(14\).
• Valence Electron: Carbon has \(4\) valence electrons (electron configuration \(1s^{2}2s^{2}2p^{2}\)).

Sulfur

• Element Symbol: Sulfur is represented as \(S\).
• Atomic Number: The atomic number of sulfur is \(16\).
• Period: Sulfur is in period \(3\).
• Group Number: Sulfur is in group \(16\).
• Valence Electron: Sulfur has \(6\) valence electrons (electron configuration \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{4}\)).

Answer:

Element Name	Element Symbol	Atomic Number	Period	Group Number	Valence Electron
Sodium	\(Na\)	\(11\)	\(3\)	\(1\)	\(1\)
Aluminum	\(Al\)	\(13\)	\(3\)	\(13\)	\(3\)
Potassium	\(K\)	\(19\)	\(4\)	\(1\)	\(1\)
Carbon	\(C\)	\(6\)	\(2\)	\(14\)	\(4\)
Sulfur	\(S\)	\(16\)	\(3\)	\(16\)	\(6\)