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WorksheetsAtomic Structure
Total questions: 13
Worksheet time: 9mins
Which object in the diagram has a negative charge?
A
B
C
D
The nucleus of an atom is much __________ than the electron cloud.
larger
smaller
Which statement best describes a PROTON?
Its mass is similar to that of an electron, but it has a positive charge.
Its mass is similar to that of an electron, but it has a negative charge.
Its mass is similar to that of a neutron, but it has a positive charge.
Its mass is similar to that of a neutron, but it has no charge.
Which statement best describes the particles that make up the part labeled X in the model of an atom?
They all have no charge.
The all have a positive charge.
Some have a positive charge and some have no charge.
Some have a positive charge and some have a negative charge.
According to the periodic table, the atomic number of Gold (Au) is (a) .
According to the periodic table, the atomic mass of Calcium (Ca) is (a) .
How many protons are in an atom of Nickel (Ni)?
(a)
If the mass number of Lead (Pb) is 208, how many neutrons can be found in an atom of Lead?
(a)
A student made the flash card shown for a review game. Which number describes the electrical charge of this atom's nucleus?
-74
-53
+21
+53
Which statement describes a similarity between electrons and protons?
They have the same mass.
Both are found in the nucleus of an atom.
Both have an electrical charge.
Both are found in the electron cloud.
Which statement about the masses of subatomic particles is true?
Electrons and neutrons have similar masses.
Neutrons and protons have similar masses.
Electrons, protons, and neutrons all have similar masses.
Electrons, protons, and neutrons all have very different masses.
How many protons, neutrons, and electrons are in a neutral atom of radium, Ra, with a mass number of 226?
88 protons, 138 neutrons, and 88 electrons
88 protons, 226 neutrons, and 138 electrons
138 protons, 88 neutrons, and 138 electrons
226 protons, 314 neutrons, and 88 electrons
What is the difference between the number of neutrons in an atom of iridium (Ir) with a mass number of 193, and the number of neutrons in an atom of plutonium (Pu) with a mass number of 244?
(a)
