4. Atoms and Elements

In a simplified model of subatomic particles, what is the magnitude of the electric charge of a neutron?

Which subatomic particle determines the identity of an atom (i.e., which element it is)?

How many protons does an atom of zinc contain?

In a simplified model of the atom, where is the electron located?

Which set correctly lists the three major subatomic particles found in atoms (in a simplified model)?

Which subatomic particle determines the identity of an element (i.e., its atomic number)?

In early atomic theory, which scientist is commonly credited with calculating the electron’s charge-to-mass ratio and thereby enabling determination of the electron’s mass?

In atomic structure, how do you determine the mass number (A) of an element’s atom?

In introductory chemistry, what is the accepted mass of a proton (rest mass) in kilograms?

How many electrons are in a neutral atom of lithium (Li)?

In an atom, which subatomic particles are in constant motion around the nucleus in the simplified model of atomic structure?

Which element is represented by an atom with 3 protons, 4 neutrons, and 3 electrons?

In simplified terms, what is the relative mass of an electron compared to a proton?

In a simplified model of subatomic particles, the mass number of an atom is determined by which of the following?

Which statement correctly describes a property of a neutron in an atom?