Thallium(Tl)
Group 3A is an old numbering system of the groups of the periodic table. Using the modern numbering system of the groups, you are referring to group 13. The element in group 13, period 6 is thallium (Tl).
Tungsten is a transition metal and therefore is not in a specific column, because it has no definite number of electrons in it's outer shell at one time. It is in the 6th row of the periodic table and is the 74th element
The outer electron in the electronic configuration give idea of the group in the Modern Periodic Table & also period.
In the first group of modern periodic table,i.e from hydrogen to francium.
7A is the 17th period in the modern periodic table. It contains halogens.Fluorine,chlorine,bromine are few examples.
lanthanium
the answer is THALLIUM
Helium is located on the group 18 and period 1 on the modern periodic table.
Nitrogen can be found in the 1st period of group 15 elements in the periodic table.
It is placed in group 1, period 1 on the modern periodic table
Group 14, Period 4
Period 5, group 17
The element is an inner transition metal called lanthanum, with the atomic number 57.
Indium in the periodic table: group 13, period 5, atomic number 49.
Group 3A is an old numbering system of the groups of the periodic table. Using the modern numbering system of the groups, you are referring to group 13. The element in group 13, period 6 is thallium (Tl).
neon is found in group 18, period 2
Calcium belongs to group-2.the period no. is 4