4.2. Structure of the Nuclear Atom Questions and Answers

4.2. Structure of the Nuclear Atom

Dalton theorized that atoms are indivisible, but the discovery of ___ particles changed
this theory - answer Subatomic

Scientist now know that atoms are made up of electron, which have a ___ charge; ___,
which have a positive charge; and ___, which are neutral - answer Negative, Protons,
Neutrons

The latter two particles are found in the ___ of the atom - answer Nucleus

It was ___ who discovered the nucleus of the atom - answer Ernest Rutherford

The nucleus, which has a ___ charge, occupies a very small volume of the atom -
answer Positive

The negatively charged ___ occupy most of the volume of the atom - answer Electrons

According to Dalton's atomic theory, atoms are composed of protons, electrons, and
neutrons - answer Never True

Atoms of elements are electrically neutral - answer Always True

The mass of an electron is equal to the mass of a neutron - answer Never True

The charge on all protons is the same - answer Always True

Negatively charged subatomic particles - answer Electrons

Stream of electrons produced at the negative electrode of a tube containing a gas at low
pressure - answer Cathode Ray

Positively Charged subatomic particles - answer Protons

Subatomic particles with no charge - answer Neutrons

The central core of an atom, which is composed of protons and neutrons - answer
Nucleus

Which subatomic particles are found in the nucleus of an atom? - answer Protons and
Neutrons

Which subatomic particles are charged? - answer Protons and Neutrons