Researchers recently formed a new synthetic element with atomic number 109. Which of the following elements would have chemical properties most similar to this new element?
A) W
B) Ac
C) Hf
D) Xe
E) Ir

Question

Quizplus · Accepted Answer

The new synthetic element with atomic number 109 is Meitnerium (Mt), which is in the same group as Iridium (Ir) in the periodic table. Elements in the same group have similar chemical properties.

Researchers Recently Formed a New Synthetic Element with Atomic Number