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Ch.8 - Periodic Properties of the Elements
Tro - Chemistry: A Molecular Approach 4th Edition
Tro4th EditionChemistry: A Molecular ApproachISBN: 9780134112831당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Tro 4th EditionCh.8 - Periodic Properties of the Elements문제 62
8장, 문제 62

Choose the larger atom in each pair. a. Sn or Si b. Br or Ga c. Sn or Bi d. Se or Sn

검증된 단계별 안내
1
1. The size of an atom is determined by the number of energy levels it has, which is equivalent to the period number on the periodic table. The more energy levels an atom has, the larger it is.
2. For each pair, locate the elements on the periodic table and identify their period numbers. The element with the higher period number is the larger atom.
3. For pair a (Sn or Si), Sn is in period 5 and Si is in period 3. Therefore, Sn is the larger atom.
4. For pair b (Br or Ga), Br is in period 4 and Ga is in period 4. However, Br is a halogen and Ga is a metal. Halogens are generally larger than metals in the same period, so Br is the larger atom.
5. For pair c (Sn or Bi), Sn is in period 5 and Bi is in period 6. Therefore, Bi is the larger atom.
6. For pair d (Se or Sn), Se is in period 4 and Sn is in period 5. Therefore, Sn is the larger atom.

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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
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.
추천 영상:
가이드 코스
02:10
Atom Structure

Periodic Trends

Periodic trends are patterns observed in the periodic table that describe how certain properties of elements change as you move across a period or down a group. Key trends include atomic radius, ionization energy, and electronegativity, which help predict the behavior of elements in chemical reactions and their relative sizes.
추천 영상:
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.
추천 영상:
가이드 코스
02:35
Elemental Forms of Elements
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