Sodium (from Latin natrium)
The answer to the periodic table element pun "A nice guy" is Nickel, whose chemical symbol is Ni.
Helium
PB is the symbol for LEAD. The atomic no is 82
-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.
Yes, if a periodic table that includes atomic numbers, as most periodic tables do, is available for reference
[Au] is GOLD atomic mass - 196.97, and is in 79th place in the periodic table of elements
That would be Hydrogen, whose name means, (Make water).
there is no known element whose symbol is "Le" but there is: Li (lithium), Lr (Lawrencium), Lu (Lutetium), La (Lanthium)
At-Astatine Because it is the 85th element of the periodic table. That means that it has 85 protons and 85 electrons
Na is "short" for natrium, an original name given to the element sodium.
Yes, a Group 16 VIA element can have an atomic mass larger than the element that follows it in the periodic table. An example is tellurium (Te), which has an atomic mass of about 127.6 amu, while the next element, iodine (I), has an atomic mass of about 126.9 amu. This occurs due to the varying numbers of protons and neutrons in the nuclei of these elements, leading to differences in their atomic masses.