An element has same number od neutrons as total number of protions or electros , what will be the neutron excess ?

Which has magic number of neutrons?

Do isobars have the same number of neutrons?

The number of neutrons in the element Be is

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

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