Question

Part A: Enter the number of electrons lost or gained when an atom with 36 protons has 36 electrons

Part B: Enter the ion or atom that has 36 protons and 36 electrons

Part C: Enter the number of electrons for an atom or ion that has 16 protons and has gained 2 electrons

Part D: Enter the atom or ion that has 50 protons and 46 electrons

Answer 1

Ans :

Part A :

The number of protons and electrons are same . So basically the atom is neutral and it has not lost or gained any electrons.

Part B :

The proton number is 36 , so the atomic number will also be 36. Number of electron is 36 , so it will be atom not ion. The element will be Krypton with symbol : Kr

Part C :

If the element with 16 protons has gained 2 electrons , then the total number of electrons will be : 16 + 2 = 18

Part D :

For 50 protons , the element is Tin . Since it has 46 electrons (4 electrons less). It will be an ion : Sn⁴⁺