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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: redXI on August 08, 2005, 09:45:11 AM

Title: moderate questions
Post by: redXI on August 08, 2005, 09:45:11 AM

I'm having a hard time solving these questions. Would somebody please help this poor little kid.  :-[

1. 2 elements represented by P, Q, and R have proton numbers between 10 and 18. P has two more electrons than a noble gas structure while Q, has two elctrons fewer than a noble gas structure. Atom R has 13 electrons.

- What is the correct order of these elements in periodic table?

- Which element is a. metal b. non-metal ?

2. Draw the structure when Lithium loosened elctron and chlorine gains

Thank you sooo much.  :D

Title: Re:moderate questions
Post by: Borek on August 08, 2005, 11:22:54 AM

Write down atomic numbers of the first three noble gases - you will find them in periodic table. Then it is simple logic.