The number 35 above Br represents its atomic number. It is also equal to number of protons in Bromine.
No. they dont represent the periodic table.
The numbers on Mendeleev's periodic table represent the atomic number of each element, which is the number of protons in the nucleus of an atom. This number determines the element's identity and its placement in the periodic table.
The number listed above the symbol of an element on the periodic table is the element's atomic number.
Above sodium in the periodic table of elements is lithium. Lithium has an atomic number of 3, while sodium has an atomic number of 11. This means that lithium has 3 protons in its nucleus, while sodium has 11.
Whereas the vertical columns on the periodic table are called "groups", and represent the number of electrons in an element's outermost electron shell (eg. group 2 elements have twoelectrons in their farthest energy level), the horizontal rows, known as "periods", refer to the number of energy shells surrounding the nucleus of an element.
Look it up in "periodic table of elements" You can find the number of a particular element by looking at the Periodic Table; you can also do this by counting the number of protons in the nucleus.
Arsenic
The second element on the periodic table is helium with atomic number 2. Pi is a mathematical constant used in geometry to represent the ratio of a circle's circumference to its diameter. It is not associated with elements on the periodic table.
either mass or protons the top is the atomic number it shows how many protons the bottom number is the atomic mass also the weight
A row of elements across the periodic table is called a period. Periods represent the number of electron shells in an atom.
atomic number
if you look @ the periodic table, you will find the tiny # above the element... that is its atomic #.