Question

the united nations declared the year 2019 as the year of the periodic table. the year 2019 marks 150 years since the discovery of the periodic system of the arrangement of elements which led to the periodic table, mostly credited to dmitri mendeleev. since 1869, scientists have discovered or synthesized a number of new elements which exhibit properties in keeping with the logic of the

which statements would be expected to be true for organesson? select all that apply.
a. it is relatively unreactive.
b. it has a high electron affinity.
c. it has a full valence shell of electrons.
d. it has the largest atomic radius of the 4 new elements.

Explanation:

Noble - gases like organesson have a full valence shell of electrons, making them relatively unreactive. High electron - affinity is characteristic of non - metals that want to gain electrons, which is not true for organesson. Larger atomic radii are not a defining feature of noble gases compared to other elements in the same period.

Answer:

A. It is relatively unreactive.
C. It has a full valence shell of electrons.