Boron, aluminium, gallium ,indium ,thallium
Argon is in the third period of the modern periodic table.
Neptunium is element 93.
Calcium
Europium
Tantalum
The fifty-third element in the periodic table is iodine, which has the chemical symbol I and atomic number 53. It is a halogen with properties similar to chlorine and bromine.
Sulfur (S, element number 16) is on the third period of the periodic table.
Chlorine.
Argon (Ar, element number 18) is the last element in the third period of the periodic table.
The element abbreviated with As on the periodic table is Arsenic
No, carbon is not the first element on the periodic table of elements. Hydrogen is the first element on the periodic table.
NO!!! Carbon is No. 6 in the Periodic Table. Hydrogen is No. 1 in the Periodic Table.