WorksheetsATOM - INSIDE OUT
Total questions: 15
Worksheet time: 75secs
Which subatomic particle is negatively charged?
electron
neutron
positron
proton
Which subatomic particles can be found in the nucleus of an atom?
protons only
neutrons only
protons and electrons
protons and neutrons
Which of the following is true when comparing the size and mass of the nucleus in reference to the entire atom? The nucleus is
larger and contains little of the atom's mass.
larger and contains most of the atom’s mass.
smaller and contains little of the atom's mass.
smaller and contains most of the atom's mass.
Which subatomic particle has no charge?
electron
neutron
positron
proton
Who is the proponent of the “Plum Pudding Model” of an atom?
Niels Bohr
John Dalton
Ernest Rutherford
Joseph John Thomson
Which experiment proved that nucleus is dense and is positively charged?
oil drop experiment
gold foil experiment
nuclear fission experiment
cathode-ray tube experiment
What happened to most of the alpha particles in Rutherford's experiments?
They combined with the foil.
They passed through the foil.
They were absorbed by the foil.
Most alpha particles were undeflected.
The nucleus accounts for practically all the mass of an atom and possesses a positive charge. Which statement explains why a nucleus has these properties?
It is made of only protons.
It is made of protons and electrons.
It is made of protons and neutrons.
It is made of neutrons and electrons.
In describing the atoms of a given element, which of the following is true when the number and type of particles are being considered?
having the same mass number
having the same number of protons
having the same number of neutrons
having an equal number of protons and neutrons
What happens to the charge of an atom when it loses an electron?
It remains neutral.
It becomes positive.
It becomes negative.
It remains the same.
Why are atoms considered electrically neutral?
It is because all atoms contain neutrons.
It is because there is an equal number of protons and electrons.
It is because all subatomic particles lose their charges once they enter an atom.
It is because the number of subatomic particles in the nucleus is always an even number.
Which of the following atomic models is proposed by Neils Bohr?
A
B
C
D
What was Thomson's atomic model called?
Spherical Model
Solar System Model
Plum Pudding Model
Model of the Atomic Theory
Which of the following statements BEST describes the location of electrons in Rutherford’s model of the atom?
The electrons are inside the nucleus.
The electrons are outside the nucleus.
There are no electrons in the Rutherford Model.
Electrons are both inside and outside of the nucleus
He created the planetary model of the atom and says that electrons move around the nucleus and have their own energy level.
John Dalton
Niels Bohr
John Joseph Thomson
Ernest Rutherford
