Chemistry Elements: a-h, Compounds, Cations, Gaseous Molecules

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Discussion Overview

The discussion revolves around a homework problem related to chemistry, specifically focusing on elements labeled from a to h. Participants are tasked with identifying which elements do not form compounds, which can form cations with a charge of 2+, and which can exist as gaseous molecules under normal conditions.

Discussion Character

  • Homework-related

Main Points Raised

  • One participant suggests that elements a, b, and c do not form compounds.
  • Another participant expresses uncertainty about identifying which elements form cations with a charge of 2+, indicating a need for guidance.
  • A third participant proposes that element b forms a cation with a charge of 2+.
  • A participant mentions that elements h and f can exist as gaseous molecules under normal conditions.
  • One participant advises others to consult a periodic table and relevant resources to decode the elements and their properties.

Areas of Agreement / Disagreement

There is no consensus on the answers to the homework questions, as participants express differing views and uncertainties regarding the properties of the elements.

Contextual Notes

Participants rely on the periodic table and external resources for information, indicating that their responses may depend on the definitions and properties of the elements in question.

chawki
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Homework Statement


Consider the elements marked with letters from a to h. Give the answer using these letters


Homework Equations


a) Give all of them which do not form compounds?
b) Give all of them which form cations with charge 2+?
c) Give all of them which form a gaseous molecule under normal conditions?


The Attempt at a Solution


a) a,b and c.
b) i don't know how to answer this even if i had the table infront of me, maybe you can give advise!
c) h,f
 

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b) b
 
First of all - find a periodic table and decode the elements. Then look for their properties and compare them with those given in the questions. This question is not more difficult than consulting your book or wikipedia.
 

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