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Ch.2 - Atoms, Molecules & Ions
McMurry - Chemistry 8th Edition
McMurry8th EditionChemistryISBN: 9781292336145당신이 사용하는 게 아니라요?교과서 변경
모든 교과서McMurry 8th EditionCh.2 - Atoms, Molecules & Ions문제 41c
2장, 문제 41c

Which represents an F atom with one minus charge (F-)? (a)
(b)
(c)

검증된 단계별 안내
1
Identify the atomic number of fluorine (F) from the periodic table, which is 9.
Understand that a neutral fluorine atom has 9 protons and 9 electrons.
Recognize that an F atom with a one minus charge (F-) means it has gained an extra electron.
Calculate the total number of electrons in F- by adding one electron to the neutral atom's electron count, resulting in 10 electrons.
Conclude that F- has 9 protons and 10 electrons, representing a fluoride ion.

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주요 개념

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

Atomic Structure

An atom consists of a nucleus containing protons and neutrons, surrounded by electrons in various energy levels. The number of protons defines the element, while electrons determine its charge. For an F atom, there are 9 protons and typically 9 electrons, resulting in a neutral charge.
추천 영상:
가이드 코스
02:10
Atom Structure

Ionic Charge

An ionic charge occurs when an atom gains or loses electrons, resulting in a net charge. An F atom with a one minus charge (F-) has gained an extra electron, bringing its total to 10 electrons. This additional electron gives the atom a negative charge, indicating it is an anion.
추천 영상:
가이드 코스
01:53
Formal Charge

Electron Configuration

Electron configuration describes the distribution of electrons in an atom's orbitals. For a neutral fluorine atom, the configuration is 1s² 2s² 2p⁵. When it becomes F-, the configuration changes to 1s² 2s² 2p⁶, indicating a full outer shell, which is a stable arrangement.
추천 영상:
가이드 코스
01:33
Electron Configuration Example
관련 실천
교과서 질문

In the following drawings, red and blue spheres represent atoms of different elements. Match the molecular pictures (a)–(c) with the following descriptions: (i) a pure substance consisting of a compound (ii) a pure substance consisting of an element (iii) a mixture of element

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교과서 질문

Which of the following three drawings represents a neutral Na atom? (a) (b) (c)

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교과서 질문

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교과서 질문

Which represents a Ca atom with two positive electrical charges (Ca2+)? (a)

(b)

(c)


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교과서 질문
In the following drawings, red spheres represent protons, and blue spheres represent neutrons. Which of the draw-ings represent different isotopes of the same element, and which represents a different element altogether? (a)

(b)

(c)

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교과서 질문

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