PB is the symbol for LEAD. The atomic no is 82
The answer to the periodic table element pun "A nice guy" is Nickel, whose chemical symbol is Ni.
[Au] is GOLD atomic mass - 196.97, and is in 79th place in the periodic table of elements
there is no known element whose symbol is "Le" but there is: Li (lithium), Lr (Lawrencium), Lu (Lutetium), La (Lanthium)
Na is "short" for natrium, an original name given to the element sodium.
Sodium (from Latin natrium)
Helium
The element with the symbol "Ma" does not exist on the periodic table. It is possible that the symbol is a typo or error. Common elements found on nutritional facts labels include sodium (Na), potassium (K), magnesium (Mg), and manganese (Mn).
KF is potassium fluoride and has the elements potassium (K) and fluoride (F).
Yes, it is a chemical element whose symbol is O and atomic number is 8. It is a member of the chalogen group on the periodic table and is a highly reactive nonmetal and oxidising agent.
-An element is placed in that group of periodic whose group number is equal to the number of valence electrons.
To figure this out, all you need to do is look at a periodic table. On the periodic table, locate the element whose atomic number is 14 and you have your answer. It turns out that that element is silicon.
At-Astatine Because it is the 85th element of the periodic table. That means that it has 85 protons and 85 electrons