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These are the transition elements found between groups 2A and 3A of the Periodic Table. In general chemistry we speak of the first transition series (i.e. Scandium to Zinc - though Zinc is not always considered to be a true transition element); the second transition series (Ytterium to Cadmium) and the third transition series (Lanthanum to Mercury).
Transition metals and their compounds find frequent use as industrial catalysts. Many of their compounds are coloured and they also have multiple valencies (that's why Zinc is not always considered a transition metal).
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How many energy levels do most elements have?
at least 3
How many things in the world are not made up of elements?
Light, and the entire electro-magnetic spectrum, is made up of photons, which are not elements. Electricity is composed of energized electrons - again, not elements. Lastly, gravity, the strong, and the weak forces are not made of elements (if they are made of things at all).
How many elements had been identified by the year 1700?
Only 13
Why is important to organize the elements in a periodic table?
It is helpful to organize things by characteristics because you can tell that certain elements are similar. For example if you knew nothing about the chemical or physical properties of (Rb) Rubidium, you could guess it has properties similar to (Cs) Cesium since they are in the same group. The common "Periodic Table" has many interesting forms. Search: "periodic table"
Radioactive elements comprise a majority?
Yes. Stable elements are 83 elements. all elements above that of atomic number 83 (Bismuth) are radioactive. Radioactive isotopes are of the order of 1500 radioactive isotope.
Electronic coniguration of dblock element-technetiun?
1s2 2s22p6 3s23p63d10 4s24p64d5 5s2
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How many elements are in NaCI have?
2
how many elements do we have?
118 elements
How many elements does the table of elements have?
There are 118 elements on the periodic table.
How many elements does H3PO4 have?
Three elements.
How many elements does dirt have?
92 elements
How many elements are in carbon fiber?
what are the elements of fiber
How many elements are?
There are 118 elements in the periodic table.
How many elements on periodic table?
118 elements
How many elements are there on a periodic table?
118 elements
How many elements are on a periodic table?
118 elements
