What is the charge of a proton?

Which famous scientist discovered the electron in 1897?

What is the smallest particle of an element that still has its chemical properties?

Where are electrons found in an atom?

What particle has no electrical charge?

Which famous physicist's model of the atom resembled a mini solar system?

What is the center of an atom called?

What is the mass of an electron compared to a proton?

What year was the atomic nucleus discovered?

Which element has the simplest atomic structure?

What is the name for atoms of the same element with different numbers of neutrons?

How many electrons can fit in the first electron shell?

What do we call an atom that has gained or lost electrons?

What percent of an atom is empty space?

Which scientist's atomic model looked like a Christmas pudding?

What is the electrical charge of an electron?

In which year did John Dalton propose his atomic theory?

What is the maximum number of electrons in the second electron shell?

Which subatomic particle was discovered last?

What is the approximate diameter of an atom in nanometers?