Question

an element x element with the atomic number ll and why element with atomic number 13 belongs to the third periodic table in Modern Periodic Table​

Answer 1

Answer:

Dear Kartikeya, If the atomic number of an element X is 13; the number of electrons in its ion x3+ will be 10. THIS IS BECAUSE x3+ IS A POSITIVELY CHARGED CATION. An atom loses electrons from its valence shell and becomes positively charged ion called cation. Here, Atom X loses 3 electrons and acquires 3+ charge.