An atom of an element has 19 electrons. What is the total number of p-electrons?

The atom of an element X has 7 electrons in its M shell. What is the atomic number of element X ?

The mass number of an element is 18. It contains 7 electrons. What is the number of protons and neutrons in it ? What is the atomic number of the element ?

The mass number of an element is 23 and it contains 11 electrons. What is the number of protons and neutrons in it ? What is the atomic number of the element ?

An element has 2 electrons in the M shell. What is the atomic number of the element ?

The atom of an element X has 7 electrons in its M shell. (a) Write the electronic configuration of element X.

The atomic number of an element is 13. What will be the number of electrons in its ion X3+

The electronic configuration of an element Z is 2, 8, 8. (a) What is the atomic number of the element ?

The ion of an element has 3 positive charges. The mass number of atom of this element is 27 and the number of neutrons is 14. What is the number of electrons in the ion ?

If K and L shell of an atom are full then what would be the total number of electrons in it ?