4. Atoms and Elements

In an atom, where are protons and neutrons located?

In a neutral atom, which subatomic particles carry a positive charge?

In atomic structure, what type of electric charge does a proton have?

In introductory chemistry, what symbol is commonly used to represent a proton?

How many protons are in an atom of bismuth (Bi)?

In a simplified model of the atom, which subatomic particles are located in the center of the atom (the nucleus)?

Two atoms always represent the same element if they have the same number of which subatomic particle?

In a neutral atom, what primarily determines the mass of the atom?

In a simplified model of subatomic particles, what is the relative mass of an electron compared with a proton (proton mass $=1$)?

In a simplified model of subatomic particles, what kind of electric charge does a proton have?

In a simplified model of the atom, which subatomic particle has the least mass?

Which statement best describes an electron?

In a simplified model of the atom, which subatomic particle has a positive charge?

How many protons are in an atom of tellurium (Te)?

In atomic structure, what electrical charge does a proton carry?