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including "unknown elements" there are 59 elements in half of the Periodic Table, not including them there is 55.5
Added:
92 natural elements/2
= 46 natural elements make up 1/2 periodic table.
What else can I help you with?
How many elements are there in periodical table?
There are 117 elements in the periodic table. Elements 1-116 and element 118. IMPROVED ANSWER --------------------------------------------------------------------------------------- 118, but element 117 is so unstable they do not officially count it as being an element on the periodic table yet.
How many protons dose atoms have?
whatever the number of the element on the periodic table is
How many protons does the largest element atom have on the periodic table?
The largest atom is francium and has 87 protons and 87 electrons.
How are the periods on the periodic table numbered?
The elements are listed in the order of how many atoms they have. For example, hydrogen is the first element on the periodic table. Hydrogen is the smallest element, and has one atom.
How many electrons does chlorine as shown on the periodic table have?
Chlorine has 17 electrons. It is displayed as atomic number in periodic table.
How many periods of element are on a periodic table?
The periodic table has 7 periods on it.
How many element are in the periodic table?
118 elements
The periodic table of element has how many periods?
7
How many regions are there in the periodic table with in each element?
The periodic table of Mendeleev has 18 groups and 7 periods.
How many Nurtons are there in the periodic table?
Each element on the periodic table has a specific number of neutrons and will vary for its isotope.
Who uses the periodic table?
Many people do to determine which element is in a substance ex: me, scientists
How many elements are there in periodical table?
There are 117 elements in the periodic table. Elements 1-116 and element 118. IMPROVED ANSWER --------------------------------------------------------------------------------------- 118, but element 117 is so unstable they do not officially count it as being an element on the periodic table yet.
How many chemical element do you have in your periodic table?
Today (June 2013) the periodic table contain 118 chemical elements, natural or artificial.
What element on the periodic table has 50 protons?
The element with 50 protons on the periodic table is tin, which has the atomic number 50.
How can you tell how many protons are in an element of the periodic table?
The number of protons is the atomic number of the element.
How many protons dose atoms have?
whatever the number of the element on the periodic table is
How can a periodic table tell you how many energy levels an element has?
Fah Q
