mary k.
This page lists questions and answers that were posted by visitors named mary k..
Questions
The following questions were asked by visitors named mary k..
                        Who am I? My properties are very similar to those of sodium, I am lighter than the element that has an atomic number one less than mine...Help me please...
                    
                    14 years ago
                
                        another who am I? I an in the same chemical family as nitrogen. I am lighter than argon
                    
                    14 years ago
                
                        I combine with two oxygen atoms to make sand. I have four valence electrons, Whar element am I?
                    
                    14 years ago
                
                        What Element am I? My properties are very similiar to sodium. I am lighter than the element that has an atomic number one less than mine.
                    
                    14 years ago
                Answers
The following answers were posted by visitors named mary k..