The 7th Period of the Periodic Table is:
Correct answer: B. Incomplete
- A. Complete
- B. Incomplete
- C. Called Long Period
- D. None of these
Explanation
The 7th period of the periodic table is currently incomplete, as new superheavy elements are still being discovered and added to the periodic table. The 7th period starts with Francium (Fr) and currently goes up to Oganesson (Og), the last known element in the periodic table.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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