the number of protons
they represent elements. the elements in a given column (or group) have the same number of valence electrons and hence similar properties.
Se stands for selenium on the Periodic Table.
There is no J in the table
11 is the atomic number for the element sodium in the periodic table.
there is no such element
they represent elements. the elements in a given column (or group) have the same number of valence electrons and hence similar properties.
N stands for Nitrogen on the periodic table.
"Br" stands for Bromine in the periodic table.
There is no symbol KM in the periodic table.
Da isnt an element on the periodic table. Sorry!
Se stands for selenium on the Periodic Table.
iodine
Beryilium
there is no such element
iodine
No, the symbol "H" stands for Hydrogen on the periodic table. The symbol "He" stands for Helium on the periodic table.
There is no J in the table