Could you pls just answer this also.
Does the family number coincide with the number of electrons in the outer shell of an atom in that family?
I just got a brainstorm.
Thanks again.
When calling the families on the periodic chart by the top or first name in the column, where hydrogen is a non metal, and in family 13, where boron is a metaloid , is it correct to call those families the hydrogen or lithium family or/ and the boron family and for family 14, the carbon family?
Thank you,
2 answers
Frankly, I haven't called these the H, or B or C groups. I have used alkali metal group, alkaline earth group, halogen group, noble element group, etc.
There is much confusion about how the columns are numbered in the periodic table but if you understand the different conventions it is true that elements in that group contain that many electrons in the outside shell. For example, If you number them 1A, 2A, 3A, 4A, 5A, 6A, 7A, etc, those elements have 1,2,3,4,5,6,7 electrons in the outside shell. If you number them, as IUPAC recommends, they are numbered 1,2,.....,13,14,..17,18, then you use the second number to give you that information. In that case, you avoid the transition elements and focus only on the representative elements. -
There is much confusion about how the columns are numbered in the periodic table but if you understand the different conventions it is true that elements in that group contain that many electrons in the outside shell. For example, If you number them 1A, 2A, 3A, 4A, 5A, 6A, 7A, etc, those elements have 1,2,3,4,5,6,7 electrons in the outside shell. If you number them, as IUPAC recommends, they are numbered 1,2,.....,13,14,..17,18, then you use the second number to give you that information. In that case, you avoid the transition elements and focus only on the representative elements. -