The current Secretary General of the United Nations, Antonio Guterres, is from Portugal.
He assumed office as the ninth Secretary-General on 1 January 2017.
Therefore, Antonio Guterres belongs to Portugal.
Why do noble gases exist as gases at room temperature, while halogens exist as solids, liquids, or gases down the group?
Which factors are responsible for the increase in metallic character down a group in the periodic table?
What is the valency of Lithium?
The maximum number of electrons that can be accommodated in the outermost orbit is _______.
If the atomic size increases, the nonmetallic character will
State the electronic configuration of Argon.
The ore of aluminium ‘bauxite’ is: