0
What 2 numbers are shown in tye periodic table for each element?
Wiki User
∙ 9y ago
The number above the symbol is the atomic number, or the number of protons in the nucleus of one atom of the element. It is this number by which they organized the Periodic Table. If this number changes so does the identity of the element. In a balanced atom this number will also be the number of electrons in the electron cloud.
The number below is the Atomic Mass number, or the average number of particles (protons plus neutrons) in the nucleus. Since the number of neutrons can change this number must be given as an average so it may contain a decimal.
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoThe numbers on the left of the periodic table are the period numbers. Periods are the horizontal rows in the periodic table. The period number is equal to the number or energy levels of an element.
Wiki User
∙ 9y agoThe two numbers shown in the periodic table for each element are numbers of electrons in the outer shell as well as the group number
Wiki User
∙ 9y agoThose numbers indicate periods. There are 7 periods in periodic table.
Wiki User
∙ 11y agoAtomic mass.
Add your answer:
Earn +20 pts
Where are hydrogen found on the periodic table?
Hydrogen is found at the very top left of the periodic table. It is the first element on the periodic table and it is shown with the atomic symbol H.
Which element family is usually shown separated from the main part of the periodic table?
Actinides
What does the numbers on the side of the periodic table represent?
The period to which the element belongs
What is eleventh element on the periodic table?
Sodium is the eleventh element on the periodic table.
What element on the periodic table weighs 19.32?
No element has an atomic weight of 19.32 on the periodic table.
Where are hydrogen found on the periodic table?
Hydrogen is found at the very top left of the periodic table. It is the first element on the periodic table and it is shown with the atomic symbol H.
Which element family is usually shown separated from the main part of the periodic table?
Actinides
What does the numbers on the side of the periodic table represent?
The period to which the element belongs
Which is the 84th element in the periodic table?
Radium (Ra) # 88th element in the periodic table.
What element numbers on the periodic table of the elements are man made?
95- 118
Which element family is usually shown separated frome the main part of the periodic table?
f block elements (lanthanides and actinides) are placed below the periodic table
What is the name of the element As in the periodic table?
The element abbreviated with As on the periodic table is Arsenic
What is eleventh element on the periodic table?
Sodium is the eleventh element on the periodic table.
The average atomic mass grams shown on the periodic table for each element is also the mass of?
one mole of atoms of the element
What is a group in a periodic table.?
A group in Periodic Table is the column of element in periodic table
Is copper wiring a mixture compound or element?
Copper is on the Periodic Table, anything on the periodic table is an element so copper wire is made from an element.
Is darmstadtium an element in the periodic table of elements?
Darmstadtium is the element 110 in the periodic table.
