Question

The elements ($z = 117$ and $120$ ) have not yet been discovered in which family or group would you place these elements and also give electronic configuration in each case?

Answer 1

We must remember that the atomic number is equal to the number of protons of a compound found in the core of each iota of that component. The nuclear number exceptionally distinguishes a synthetic component. It is indistinguishable from the charge number of the core. In an uncharged iota, the nuclear number is additionally equivalent to the quantity of electrons.

Complete step by step answer:
Given details:
The Atomic number is $117$
The Number of proton is $117$
The electronic configuration of atom with 117 protons is
The number of valence electrons is five thus the given compound belongs to the Halogen Family.
The atomic number is $120$
The number of protons is $120$
The electronic configuration of atoms with $120$ protons is .
The number of valence electrons is two thus the element belongs to the Alkali earth family.

Additional information:
We must remember that each component has a particular arrangement of compound properties as an outcome of the quantity of electrons present in the nonpartisan particle, which is Z. The setup of these electrons follows from the standards of quantum mechanics. The quantity of electrons in every component's electron shells, especially the furthest valence shell, is the essential factor in deciding its substance holding conduct. Subsequently, it is the nuclear number alone that decides the compound properties of a component; and it is consequently that a component can be characterized as consisting of any combination of particles with a given nuclear number.

Note: We need to know that the molecules with a similar nuclear number yet unique neutron numbers, and subsequently extraordinary mass numbers, are known as isotopes. Somewhat more than 3/4 of normally happening components exist as a combination of isotopes, and the normal isotopic mass of an isotopic blend for a component in a characterized climate on Earth, decides the component's standard nuclear weight.