Aluminum was discovered in 1825 by Hans Oersted. It has a period number of 3, group number of 13, atomic number of 13, and block number p.
Boron is found in period 2 and group 13.It has atomic number of 13.
The period number of aluminum is 3. This is a metal which is found in the group 13 and uses the chemical symbol Al.
Aluminum has its electrons in three different energy levels. Therefore it is in third period. As it has three valence electrons, it is located in group 3.Aluminium is found in group-13. Its period umber is 3. Its atomic number is 13.Aluminium is a metal element. It is in the 13th group of the periodic table. And it belongs to the 3rd period.
A 13 year period, it has no name
Boron is the element. Its symbol is B.
Boron, atomic number 5, is a Group 13 element, in Period 2, in block p.
1 can go into 13. 13 can go into 13.
13% = 0.13
as 13 is a prime number 13 = 13 x1
Its period number is 4
13