Question

based on the information in the table, which elements are most likely in the same periods of the periodic table?
aluminum (al)
boron (b)
carbon (c)
gallium (ga)
germanium (ge)

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Explanation:

Step1: Understand Periods in Periodic Table

In the periodic table, elements in the same period have the same number of electron shells.

Step2: Analyze Electron Shells (Total Electrons)

• Boron (B): Total electrons = 5. Electron shell configuration: 2 - 3 (2 shells)
• Carbon (C): Total electrons = 6. Electron shell configuration: 2 - 4 (2 shells)
• Aluminum (Al): Total electrons = 13. Electron shell configuration: 2 - 8 - 3 (3 shells)
• Gallium (Ga): Total electrons = 31. Electron shell configuration: 2 - 8 - 18 - 3 (4 shells)
• Germanium (Ge): Total electrons = 32. Electron shell configuration: 2 - 8 - 18 - 4 (4 shells)

Boron and carbon have 2 electron shells (same period - second period). Aluminum has 3 electron shells (third period). Gallium and germanium have 4 electron shells (fourth period)

Answer:

Boron and carbon are likely together in one period because they each end in “-on,” while aluminum, gallium, and germanium are likely together in another period because they each end in “-ium.”