the discovery of the sixth quark was accomplished by\nusing the hubble space telescope\nbombarding gold foil…

the discovery of the sixth quark was accomplished by\nusing the hubble space telescope\nbombarding gold foil with alpha particles\nexperimenting with cathode ray tube\nstudying proton collisions\nwhich of the following atomic particles is positively charged?\nneutron\nelectron\nproton\nnegatron\nan element is made up of only one kind of atom.\ntrue\nfalse

the discovery of the sixth quark was accomplished by\nusing the hubble space telescope\nbombarding gold foil with alpha particles\nexperimenting with cathode ray tube\nstudying proton collisions\nwhich of the following atomic particles is positively charged?\nneutron\nelectron\nproton\nnegatron\nan element is made up of only one kind of atom.\ntrue\nfalse

Answer

Brief Explanations:

  1. The discovery of the sixth - top quark was made through high - energy proton - proton collisions in particle accelerators. The Hubble Space Telescope is for observing celestial objects, the gold - foil experiment was for understanding the atomic nucleus structure, and cathode - ray tube experiments were related to the discovery of electrons.
  2. Neutrons are neutral, electrons are negatively charged, protons are positively charged, and negatron is another term for an electron (negatively charged).
  3. By definition, an element is a pure substance made up of only one kind of atom.

Answer:

  1. studying proton collisions
  2. proton
  3. True