01-11-2021 Year 10 Chemistry Quiz 2 C1- Atomic Structure Pt2

C1.5- Which ancient civilisation were the first to theorise about the existence of 'atmos'- small particles that make up the universe?

• Romans

• Greeks

• Mayans

• Aztecs

C1.5- Which scientist suggested in the early 1800s that atoms were tiny, hard spheres and that different elements were made of different types of atom?

• Copernicus

• Dalton

• Rutherford

• Thomson

C1.5- The 'plum pudding model' contained the first mention of which type of subatomic particle?

• Protons

• Neutrons

• Electrons

• Positrons

C1.5- What did Geiger and Marsden fire at gold foil in their experiments investigating the structure of the atom?

• Protons

• Electrons

• Alpha Particles

• Gamma Rays

C1.5- Which of these is NOT a correct observation from Geiger and Marsden's experiment?

• Some particles were absorbed by the atoms

• The vast majority of the particles passed through the atoms

• A small amount of them were deflected slightly

• An even smaller amount were completely reflected back

C1.5- Which of these is atomic discoveries was made by Rutherford thanks to Geiger and Marsden's experiment?

• Protons

• Neutrons

• Electrons

• Nucleus

C1.5- Which of these is true of BOTH the plum pudding model AND the nuclear model

• An atom contains a sphere of positive charge

• An atom is mostly empty space

• The positive charge is really concentrated in the centre of the atom

• Electrons orbit the positive charge of the atom

C1.5- Which subatomic particle did Chadwick discover?

• Protons

• Neutrons

• Electrons

• Positrons

C1.5- What discovery did Bohr make about the atom?

• That electrons can be added or removed

• That electrons orbit fixed distances (or shells) around an atom

• That electrons have a charge of -1

• That isotopes have the same number of protons but different a number of neutrons

C1.6- What is the charge of a proton?

• -1

• 0

• +1

• +2