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WorksheetsProtons, Neutrons, Electrons and Ions.
Total questions: 10
Worksheet time: 5mins
What is an ATOM?
It is a tiny unit of matter made up of three particles:protons, neutrons and electrons.
It is a subatomic particle.
It is a particle with a negative electrical charge.
All the obove
How can we see the protons in the periodic table?
With the microscope.
Mass number
Atomic number.
That doesnt exist.
Where can we found the protons?
In the outside of the atom.
In the atom nucleus.
Everywhere in the atom.
In the outside of the nucleus.
Does the neutrons have any electrical charge?
NO.
YES, negative charge.
YES, positve charge.
NO, neutrons al neutral
complete the following sentence:
"The number of ___________ in an atom is equal to the number of ____________ in its nucleus
protons-electrons
neutrons-electrons
electrons-protons
protons-neutrons
How electrons move around the atom?
by entering to the nucleus.
by staying in the same place.
by orbiting around the positive charged atomic nucleus.
electrons are all around the atom.
complete the following sentence:
"An electron is a stable subatomic particle with a _______________ electrical charge.
negative
positive
neutral
any
what is an ion?
it is a subatomic particle.
atoms in which there are unequal numbers of protons and electrons are called ions.
it is a positive electrical charge molecule.
none of the obove
Which two sub-particles are found together in the nucleus of an atom?
none of them
electrons and protons
electrons and neutrons
protons and neutrons
True or False:
"Every sub-particle have an electrical charge"
TRUE
FALSE
