If the atomic number of lithium is 3, then the atomic number of francium will be

If the atomic number if C is 6 , then the atomic number of Sn will be

The atomic number of helium is 2 and the atomic number of lithium is 3. Is it possible to have an element with atomic number 2.5?

The atomic size of lithium is larger than the atomic size of beryllium. Give reason.

If number of electrons in an atom is 8 and number of protons is also 8, then what is the atomic number of the atom

The atomic size of beryllium is smaller than the atomic size of lithium. Give reason.

What is the basis of the Modern Periodic Table? Why lithium with atomic number 3 and potassium with atomic number 19 placed in group one? What are the atomic numbers of the first two elements in the second group?

Is atomic number of an atom alwayus equal to the number of electons?

If the Effective Atomic Number (EAN) of [A(NH_3)_6]Cl_3 is 33, the atomic number of the element (A) will be __________.

If the Effective Atomic Number (EAN) of [A(NH_3)_6]Cl_3 is 33, the atomic number of the element (A) will be __________.