Structure 1. Models of the particulate nature of matter – Page 2

M25-CHEM-HL-TZ2-P1A-Q3

What is the maximum number of electrons that can occupy the \( n=3 \) main energy level?

Which of the following species have the same number of outer electrons? The letters do not represent symbols of elements.

Which of the following correctly describes the 3-dimensional shapes of s and p atomic orbitals?

The volume of a container filled with a fixed amount of gas is increased by 100% at constant temperature. How

Which diagram shows the correct electron configuration of a nitrogen atom in the ground state?

Which row shows a gas that would deviate the least from ideal gas behaviour?

The diagram below shows the behaviour of protons, neutrons and electrons in an electric field. The particle beam splits into

A sample of bromine has the following composition by mass: \( {}^{79}Br \) 50.75% \( {}^{81}Br \) 49.25%

Nitrogen monoxide, \( NO(g) \), is produced in internal combustion and jet engines.

Phosphorus is an element that is an essential part of the biological molecules involved in both respiration and photosynthesis.