Question

the modern atomic model describes electrons as: moving in fixed circular orbits; located in electron probability clouds; stationary particles; part of the nucleus which group in the periodic table contains elements with similar chemical properties? period 2; transition metals; group 18; period 4

Explanation:

In the modern atomic model, electrons are described as being in electron - probability clouds due to the uncertainty principle. Elements in the same group of the periodic table have similar chemical properties because they have the same number of valence electrons. Group 18 elements are the noble gases and have similar non - reactive chemical behavior.

Answer:

1. Located in electron probability clouds
2. Group 18