Week 2 Reading Quiz

What would happen to the Nitrogen atom if removing an electron?

• Mass increases by 1

• Mass stays the same

• Charge changes from 0 to +1

• Charge changes from 0 to -1

Which one of the following is not the limitation of atomic model in the picture?

• The movement of electron should not be fixed orbits but waves of probability

• There should be more neutrons than electrons

• The nucleus should be way more smaller compared to size of the atom

• Most space in the atom should be empty space

What are different between isotopes, such as oxygen-16 and oxygen-18?

• Number of Protons

• Number of Neutrons

• Number of electrons

• Number of particles

What is between nucleus and electrons

Which of the following are molecules?

• O

• H⁺

• NH₃

• Carbon-12

Which of the following is ion?

• He

• Cl^-

• NH₃

• Carbon-12