객관식
Which element has 79 protons (atomic number 79)?
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4. Atoms and Elements
Periodic Table: Element Symbols
2:43분문제 98
교과서 질문
Write the name and symbol of the element with the following atomic number: (4.1, 4.2) h. 92
검증된 단계별 안내1
Identify the atomic number given in the problem, which is 92.
Recall that the atomic number of an element corresponds to the number of protons in the nucleus of an atom of that element.
Use the periodic table to find the element with atomic number 92.
Note that the periodic table is organized by increasing atomic number, so locate the element in the table.
Write down the name and symbol of the element that corresponds to atomic number 92.
비슷한 문제에 대한 검증된 영상 답변:이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
2m주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Atomic Number
The atomic number of an element is the number of protons found in the nucleus of its atoms. It uniquely identifies an element and determines its position in the periodic table. For example, an atomic number of 92 corresponds to uranium, which has 92 protons.
추천 영상:
가이드 코스
05:22
Atomic Theory
Element Symbol
Each chemical element is represented by a unique one- or two-letter symbol, derived from its name. These symbols are used universally in chemical equations and formulas. For instance, the symbol for uranium is 'U', which is derived from its name.
추천 영상:
가이드 코스
04:01Periodic Table: Symbols Concept
Periodic Table
The periodic table is a tabular arrangement of elements organized by increasing atomic number. It groups elements with similar properties into columns, known as groups or families. Understanding the layout of the periodic table helps in identifying elements based on their atomic number and predicting their chemical behavior.
추천 영상:
가이드 코스
02:40Periodic Table: Classifications
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