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

[chawki]

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

 

[chawki]

Where are you people...

 

[chawki]

b) b

 

[Borek]

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.

 

[DeeNos]

and g.

I would like to clarify a few things about the content provided. Firstly, it is not clear what type of elements are being referred to as there are many different types of elements in chemistry (e.g. metals, non-metals, metalloids). Secondly, it would be helpful to have more context or information about the elements mentioned in order to provide a more accurate response.

That being said, assuming that the elements referred to are from the periodic table, my response would be as follows:

a) Based on the information given, it is not possible to determine which elements do not form compounds. All elements have the potential to form compounds depending on the conditions and other elements they are reacting with.

b) Again, without more information it is difficult to determine which elements would form cations with a charge of 2+. However, some elements commonly have a 2+ charge, such as calcium (Ca), iron (Fe), and zinc (Zn).

c) Under normal conditions, most elements are in their solid or liquid state. However, there are a few elements that exist as gaseous molecules under normal conditions, such as hydrogen (H2), nitrogen (N2), oxygen (O2), and fluorine (F2).

In order to provide a more accurate and complete response, it would be helpful to have more information about the elements mentioned in the content. Additionally, it is important to note that chemistry is a complex and constantly evolving field, so the answers provided may not always be definitive. It is always best to consult reliable sources and conduct further research to confirm any information.