Grade 12 Chemistry: Periodic Table Mastery
A comprehensive worksheet for Grade 12 students covering key concepts of the Periodic Table, including trends, electron configurations, and element properties.
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Grade 12 Chemistry: Periodic Table Mastery
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Read each question carefully and provide your best answer. Show all work where applicable.
1. Which of the following elements has the largest atomic radius?
Lithium (Li)
Fluorine (F)
Cesium (Cs)
Bromine (Br)
2. Which group of elements is characterized by having a full outer electron shell, making them very unreactive?
Alkali Metals
Halogens
Noble Gases
Transition Metals
3. The Periodic Law states that the properties of elements are periodic functions of their atomic .
4. Elements in the same (column) of the periodic table have similar chemical properties.
5. The energy required to remove an electron from a gaseous atom is called energy.
6. Explain the general trend in electronegativity across a period and down a group in the periodic table.
7. Describe the main characteristics of metals, nonmetals, and metalloids.
8. Atomic radius generally increases from left to right across a period.
True
False
9. Cations are typically larger than their neutral atoms.
True
False
10. Write the full electron configuration for the element with atomic number 17 (Chlorine).
11. Write the noble gas shorthand electron configuration for the element with atomic number 26 (Iron).
12. Consider the element information shown below:
Based on the typical information found in a periodic table element box, what do the numbers '35.453' and '17' represent for Chlorine (Cl)?