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WorksheetsAtoms and Molecules
Total questions: 15
Worksheet time: 8mins
Which of the following best describes an atom?
Protons and electrons grouped together in a random pattern
Protons and electrons grouped together in an alternating pattern
A core of protons and neutrons surrounded by electrons
A core of electrons and neutrons surrounded by protons
Which subatomic particle is farthest from the center of an atom?
Electron
Neutron
Nucleus
Proton
Which of the following particles can be found in the nucleus of an atom?
Protons only
Electrons only
Protons and electrons
Protons and neutrons
In the diagram, the letter "b" is pointing to which subatomic particle?
Electron
Proton
Neutron
Nucleus
Which of the following particles are NOT located in the nucleus of an atom?
Protons only
Electrons only
Protons and electrons
Protons and neutrons
Which statement best describes the part of the atom that is shown by the
arrow?
It is an electron and it has a negative charge.
It is an electron and it has a positive charge.
It is an proton and it has a negative charge.
It is an electron and it has a positive charge.
The subatomic particles located in the electron cloud have a _______ charge
Positive
Negative
Neutral
Positive and negative
Which best describes the relationship between the subatomic particles in any neutral atom?
The number of protons equals the number of electrons
The number of protons equals the number of neutrons
The number of neutrons equals the number of electrons
The number of neutrons is greater than the number of protons
Which diagram correctly illustrates the structure of an atom?
Model A
Model B
Model C
None are correct
How many electrons are in an electrically neutral atom of potassium?
19
20
39.10
68.10
Which subatomic particle is found in the outer most energy level surrounding the atom’s nucleus?
Valence electron
Neutron
Proton
P. E. N.
Which element does the atomic model illustrate?
Sodium(Na)
Vanadium(V)
Magnesium(Mg)
Hydrogen(H)
Which statement accurately describes the subatomic particles of electrons and protons?
They both have a neutral charge
They both have a positive charge
Their charges are attracted to each other
They are both located outside the nucleus
If a single yttrium (Y) atom contains 39 electrons, how many protons does Y have?
4
19
20
39
A sample of GOLD element will contain…
Gold atoms ONLY
Gold, Platinum, and Silver atoms
Gold protons ONLY
Gold electrons ONLY
