An element has atomic number 30. Its cation has 2 units positive charge. How many protons and electrons are present in the cation?

How many protons, neutrons and electrons are present in an atom of tritium ?

How many electrons are present in the p-orbitals of methyl cation?

An element has on atomic number = 53. State its position in the Periodic Table.

An element 'E' has atomic number 14. To which period this element belongs? How many number of elements are present in the period to which element ' E' belongs?

The atomic number of an element is 12. How many protons and electrons are there in an atom of the element ?

The atomic number of an element is 15. How many protons and electrons are there in an atom of the element?

How many unpaired electrons are present in Ni^(2+) cation? (At. No. = 28)