Question

difine 1) isotones 2) isoelectronic species 3) electronic configuration
​

Answer 1

Explanation:

Isotone means element which having same no. of nuetrons

Answer 2

Explanation:

isotones :atoms of different elements having same number of neutrons ,are called isotones.

Electronic configuration : phenomenon ofDistribution of electrons in orbitals is called electronic configuration.

1s,2s,2p,3s,3p,4s,3d,........