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WorksheetsThe Structure of the Atom
Total questions: 16
Worksheet time: 8mins
In standard nuclear notation, what does X represent?
The position of the element of the periodic table
The name of the element
The chemical symbol for the element
The date of discovery of the element
In standard nuclear notation, what does A represent?
The number of nucleons
The number of neutrons
The number of protons
The number of electrons
In standard nuclear notation, what does Z represent?
The number of nucleons
The number of neutrons
The number of protons
The number of electrons
A certain element is known to exist as two different isotopes.
State one thing that is the same for atoms of both isotopes.
The number of protons
The number of nucleons
The number of neutrons
The number of quarks
A certain element is known to exist as two different isotopes.
State all the differences for atoms of both isotopes.
The number of protons
The number of nucleons
The number of neutrons
The number of electrons
An atom of one of the isotopes of sodium contains:
11 protons, 11 electrons and 13 neutrons
Which of these will be the same in neutral atoms of all isotopes of sodium?
11 protons
11 electrons
13 neutrons
The chemical symbol
An atom of one of the isotopes of sodium contains:
11 protons, 11 electrons and 13 neutrons.
State the nucleon number of this isotope.
11
13
24
35
Which statement about the chemical properties of different isotopes of sodium is correct?
The chemical properties of different isotopes of sodium are the same.
The chemical properties of different isotopes of sodium differ depending on the number of neutrons.
The chemical properties of different isotopes of sodium differ depending on the number of electrons.
The chemical properties of different isotopes of sodium differ depending on the number of nucleons.
One isotope of sodium is 25Na
How many neutrons are there in one atom of this isotope?
11
14
25
36
The most abundant stable isotope of strontium is strontium-88.
How many nucleons are there in a nucleus of strontium-88?
38
50
88
126
The most abundant stable isotope of strontium is strontium-88.
How many neutrons are there in a nucleus of strontium-88?
38
50
88
126
The most abundant stable isotope of strontium is strontium-88.
How many protons are there in a nucleus of strontium-88?
38
50
88
126
The most abundant stable isotope of strontium is strontium-88.
How many electrons are there in a neutral atom of strontium-88?
38
50
88
126
Strontium-90 is a radioactive isotope of strontium. How does the structure of this isotope differ from that of strontium-88.
Two more electrons
Two more protons
Two more neutrons
Two less protons
What is an ion?
A neutral atom
An atom that has gained/lost a proton
An atom that has gained/lost an electron
An atom that has gained/lost a neutron
Why is nuclear radiation said to have an ionising effect?
Nuclear radiation adds electrons to atoms
Nuclear radiation removes electrons from atoms
Nuclear radiation adds protons to atoms
Nuclear radiation removes protons from atoms
