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प्रश्न
A group of elements in the periodic table is given below (Boron is the first member of the group and Thallium is the last).
Boron, Aluminium, Gallium, Indium, Thallium
Answer the following question in relation to the above group of elements:
If the electronic configuration of aluminium is 2, 8, 3, how many electrons are there in the outer shell of thallium?
उत्तर
If the electronic configuration of aluminium is 2, 8, 3, then 3 electrons are there in the outer shell of thallium.
संबंधित प्रश्न
In the Modern Periodic Table, which are the metals among the first ten elements?
In the modern Periodic Table, why does cobalt with higher atomic mass of 58.93 appear before nickel having lower atomic mass of 58.71?
Name the metals in the first twenty elements.
How many periods and groups are there in the modern periodic table?
How does number of (i) valence electrons (ii) valency; vary on moving from left to right in the second period of a periodic table?
The horizontal rows in a periodic table are called _____.
Give the symbol and valency of the following element and radical.
Magnesium
Name the following:
The group of the Modern Periodic Table to which calcium [Ca2+] belongs.
What is the symbol of the element Tungsten?
Answer the following in respect of element \[\ce{_16^32S}\].
Give its formula with hydrogen.
