Question

which of the following atomic particles is electrically neutral? * neutrons protons electrons positrons the discovery of the sixth quark was accomplished by using the hubble space telescope bombarding gold foil with alpha particles experimenting with cathode ray tube studying proton collisions

Explanation:

1. For the first question, the discovery of the sixth quark was made through high - energy proton - proton collisions in particle accelerators.
2. For the second question, neutrons have no electric charge, while protons are positively charged, electrons are negatively charged, and positrons are positively charged.

Answer:

1. studying proton collisions
2. neutrons