Yes they do, the number of valence electrons increases as the elements approach the noble gasses (far right of the periodic table) where there are no valence electrons as they have full outer shells
Yes. Elements in the same group have similar properties, due to the fact that their atoms have the same number of electrons in the highest occupied (outer) energy level.
I have a 2 liter glass coke bottle from i think the 1960's
Yes, that is one of the periodic trends.
Yes, this is a general rule.
Yes
Yes
Elements in the same column have the same number of valence electrons, and form ions with the same charge.
When moving down a column in the periodic table, except for the first period of column 18, the number of valence electrons remains unchanged.
For main group elements the column number is a concrete indication of then number of valence electrons (and therefore oxidation number). And since it tells you the number of valence electrons you can get a substantially reliable idea of how reactive the element is
The alkaline earth metals in column 2 and the transition metals in column 12 of a wide-form periodic table.
there are 36 electrons in a valence shell. -cmoney
Elements with the same number of valence electrons are in the same group (or vertical column).
Elements in a given column have the same number of valence electrons and hence the similar properties.
Elements in the same column have the same number of valence electrons, and form ions with the same charge.
No. It is not the same. the number of valence electrons are same for the elements in the same column (group).
they represent elements. the elements in a given column (or group) have the same number of valence electrons and hence similar properties.
Because they have the same number of valence electrons.
Yes, it is correct.
Alkaline earth metals are placed in second column. The elements have 2 valence electrons.
Elements in same column have equal number of valence electrons. so they possess similar chemical properties.
Iodine [note correct spelling!], like all other elements in column 17 of a wide form periodic table, has 7 valence electrons.
Elements in a given group have the same number of valence electrons and hence they have similar properties.
A family is a column in a periodic table; all elements in a family have similar physical and chemical properties, because they have the same numbers of valence electrons (outer electrons).