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Ch.9 - Periodic Properties of the Elements
Tro - Chemistry: A Molecular Approach 6th Edition
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217당신이 사용하는 게 아니라요?교과서 변경
9장, 문제 64

Choose the larger atom in each pair. a. I or In b. Sb or P c. Te or Br d. S or Ge

검증된 단계별 안내
1
Step 1: Understand the concept of atomic size. Atomic size generally increases as you move down a group in the periodic table and decreases as you move across a period from left to right.
Step 2: Analyze pair a (I or In). Iodine (I) is in Group 17 and Indium (In) is in Group 13. Both are in the same period, but In is to the left of I, so In is larger.
Step 3: Analyze pair b (Sb or P). Antimony (Sb) is in Group 15 and Phosphorus (P) is also in Group 15. Sb is below P in the same group, so Sb is larger.
Step 4: Analyze pair c (Te or Br). Tellurium (Te) is in Group 16 and Bromine (Br) is in Group 17. Te is to the left and below Br, so Te is larger.
Step 5: Analyze pair d (S or Ge). Sulfur (S) is in Group 16 and Germanium (Ge) is in Group 14. Ge is below S in the periodic table, so Ge is larger.

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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
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2m

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Atomic Size

Atomic size refers to the distance from the nucleus to the outermost electron shell of an atom. Generally, atomic size increases down a group in the periodic table due to the addition of electron shells, while it decreases across a period from left to right due to increased nuclear charge, which pulls electrons closer to the nucleus.
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Periodic Trends

Periodic trends are patterns observed in the periodic table that describe how certain properties of elements change across periods and down groups. Key trends include atomic radius, ionization energy, and electronegativity, which help predict the behavior of elements in chemical reactions and their relative sizes.
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가이드 코스
00:38
Periodic Trends

Comparison of Elements

When comparing elements, it is essential to consider their positions in the periodic table. Elements in the same group typically have similar properties, while those in the same period show a gradual change in properties. Understanding these relationships allows for accurate comparisons of atomic size and other characteristics between different elements.
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가이드 코스
02:35
Elemental Forms of Elements