QQuestionChemistry
QuestionChemistry
"Vertical columns on the periodic table are called ______
The elements in each column have ______"
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Answer
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Step 1:I'll solve this problem step by step:
Step 2:: Identify the Terminology
The vertical columns on the periodic table are called "groups" or "families".
Step 3:: Understand the Characteristics of Group Elements
Elements in the same group (vertical column) have similar chemical properties because they have the same number of valence electrons in their outer electron shell.
Step 4:: Explain Valence Electron Similarity
- Valence electrons are the electrons in the outermost shell of an atom - Elements in the same group have the same number of valence electrons - This similarity leads to similar chemical behaviors and reactivity
Final Answer
- Vertical columns on the periodic table are called "groups" or "families" - The elements in each column have similar chemical properties due to having the same number of valence electrons Key Insights: - Groups are numbered from 1 to 18 in the modern periodic table - Examples: - Group 1 (alkali metals): Li, Na, K all have 1 valence electron - Group 18 (noble gases): He, Ne, Ar all have full outer electron shells - Group 17 (halogens): F, Cl, Br all have 7 valence electrons
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