GCSE Physics - Atomic Structure, Isotopes & Electrons Shells #32

What is the charge of a proton?

• Neutral

• One minus

• One plus

• Two plus

What is the relative charge of a neutron?

• One minus

• Neutral

• One plus

• Two plus

What does the atomic number represent?

• Number of electrons

• Total mass number

• Number of neutrons

• Number of protons

What are isotopes of an element?

• Atoms with different atomic numbers

• Atoms with different numbers of neutrons

• Atoms with different numbers of protons

• Atoms with different mass numbers

What is the process of unstable isotopes decaying into other elements called?

• Ionization

• Electromagnetic radiation

• Radioactive decay

• Excitation

What is the term for the arrangement of electrons in a series of energy levels?

• Radiation

• Nucleus

• Shells

• Orbiting

What is the term for an electron gaining enough energy to jump to a higher energy level?

• Decay

• Ionization

• Orbiting

• Excitation

What happens when an outermost electron leaves the atom?

• The atom becomes a negative ion

• The atom becomes a positive ion

• The atom becomes neutral

• The atom becomes an isotope

What does ionizing radiation do to atoms?

• Removes protons from atoms

• Removes electrons from atoms

• Adds electrons to atoms

• Adds protons to atoms

What is the relationship between the number of protons and electrons in an atom?

• Electrons are more than protons

• Protons are more than electrons

• They are not related

• They are equal