1s22s1
It is an element.
Uranium is an element.
No. If you burn an element, you will turn it into a compound (most commonly [element burnt] oxide). Which will not be an element.
it's an element!
1s22s1
1s22s1
The element with the excited state of 1s22s22p13s1 is lithium. In its ground state, lithium has an electron configuration of 1s22s1, but in the excited state described, one of the electrons in the 2s orbital has been promoted to the 3s orbital.
The complete electron configuration of lithium is 1s^2 2s^1. This means that lithium has 3 electrons, with 2 electrons in the 1s orbital and 1 electron in the 2s orbital.
.. [Li]+ [:I:]- (put the last 2 pairs above and below the "I" this wont let me) ..
The number of electron shells in a normal Lithium atom is 2. It has an electron configuration of 1s22s1
It is an element.
Metal is not an element. It is a term used to classify an element, but it is not an element.
It is an element. Elements are composed of atoms, and atoms of elements combine chemically to form compounds.
element. Sulfur dioxide (SO2) is a compound
If you meant "element" as in a chemical element, there is no element with the symbol "ef" in the periodic table.
There is no such thing as a good element or a bad element.