BIOB111 - Tutorial activity for Session 1
General topics for the week
•
Atomic & subatomic particles, Periodic table, electronic configuration
•
Group work reviewing atomic structure and using animations to learn more about electron
configuration.
Useful links:
1.
Atomic Structure Review – Multiple Choice Exercise - Refer to the following site and
answer the multiple choice questions
http://www.sciencegeek.net/Chemistry/taters/Unit1AtomicStructure.htm
(Link last verified 19th December 2016)
2.
Atomic Orbitals: © Jim Clark 2000 (modified 2004) provides diagrams and descriptions
Follow the links below <to look at how to write electronic structures>.
http://www.chemguide.co.uk/atoms/properties/atomorbs.html
(Link last verified 19th December 2016)
3.
Using the following link you can see the calcium skeleton dancing and Helium balloon
going high up in the air; and you can learn to write the symbols of elements or learn to
recognise the symbols and write the name. Link:
http://www.docbrown.info/ks3chemistry/8Eelements.html
(Link last verified 19th December 2016)
General tutorial questions:
1.
Firstly identify the element and it’s chemical symbol before determining it’s group and
period from looking at the periodic table:
2.
a)
Mg =
b)
Element with an atomic number 32 =
c)
Cadmium =
d)
Tin =
How many elements are present in the compound Ca3(PO4)2? List the elements in the
compound.
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3.
4.
5.
Define:
a)
Atomic number of an element =
b)
Mass number of an element =
c)
Isotope =
The nucleus of an atom contains which subatomic particle(s)?
a)
Protons only
b)
Neutrons only
c)
Protons and neutrons
d)
Electrons and Neurons
How many protons and neutrons are there in a potassium atom that has a mass number
of 39 and an atomic number of 19?
39
K
19
6.
a)
19 protons and 58 neutrons
b)
39 protons and 19 neutrons
c)
19 protons and 20 neutrons
d)
20 protons and 19 neutrons
How many neutrons are there in the nucleus of a bromine atom that has a mass number
of 80 and contains 35 protons (atomic number)?
7.
8.
a)
35
b)
45
c)
80
d)
None
(80 – 35)
Which of the following statements concerning subatomic particles is correct?
a)
Four types exist, all of which are charged
b)
Four types exist, two of which are charged
c)
Three types exist, none of which are charged
d)
Three types exist, two of which are charged
Isotopes of a given element:
a)
Have the same mass number but a different number of protons
b)
Have different mass numbers but an identical number of protons
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c)
Have the same atomic number but different chemical properties
d)
Have the same mass number but different chemical properties
Conceptual multiple choice questions:
9.
Concept: Valid measurements
Context: Our ability to measure allows us communicate our understanding of the world
around us to others. For example, the volume of water it takes to fill a glass can be
measured.
Question: What is required for the measurement to properly quantify the amount of water
in a glass?
10.
a)
The measurement requires only a number
b)
The measurement requires both a number and a unit
c)
The measurement requires only a unit to provide a scale for the measurement
d)
The measurement does not require a number or a unit to be valid
Concept: Arrangement of subatomic particles within an atom
Context: All matter is made up of particles called atoms. Atoms themselves contain
different components called subatomic particles; electrons, protons and neutrons are each
a different class of subatomic particle.
Question: How are the subatomic particles arranged in a Helium atom which contains two
protons, two electrons and two neutrons?
a)
The two protons and two neutrons are together in the centre of the atom forming the
nucleus, whereas the electrons are located around the outside of the nucleus
b)
The atoms nucleus consists of all six subatomic particles; the two protons, two
electrons & two neutrons
c)
The two protons and two electrons are together in the centre of the atom forming the
nucleus, whereas the neutrons are located around the outside of the nucleus
d)
The nucleus is made up of the two neutrons only, with the two electrons and two
protons orbiting around the central nucleus
11.
Concept: Atoms are neutral
Context: Overall, an oxygen atom carries no charge (as is the case for all atoms).
Question: What does the neutral charge of an oxygen atom indicate about the number of
protons and electrons within an oxygen atom?
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12.
a)
Oxygen contains eight protons and seven electrons
b)
Oxygen contains seven protons and eight electrons
c)
Oxygen contains eight protons and eight electrons
d)
Oxygen contains seven protons and four electrons
Concept: Atomic number
Context: Hydrogen, the first element on the periodic table, has an atomic number of one.
The second element helium has an atomic number of two and so on. Each element on the
periodic table also has a mass number, which describes the mass of one of the elements
atoms.
Question: Which of the options below correctly describes the atomic number of an
element?
a)
The atomic number is equal to the number of subatomic particles in the nucleus of
the atom
13.
b)
The atomic number is equal to the number of protons in the nucleus of the atom
c)
The atomic number of a hydrogen atom is usually 1 but it sometimes changes
d)
The atomic number is equal to the number of protons that orbit around the nucleus
Concept: Mass number
Context: Hydrogen, the first element on the periodic table, has an atomic number of one.
The second element helium has an atomic number of two and so on. Each element on the
periodic table also has a mass number, which describes the mass of one of the elements
atoms.
Question: Which of the options below correctly describes the mass number of an element?
a)
The mass number is the mass of the orbiting electrons within an atom
b)
The mass number is the mass of all three groups of subatomic particles within the
atom combined
c)
The mass number of an atom never changes, even when there are different isotope
forms of the atom
d)
The mass number is the mass of the nucleus in the atom, which is made up of
protons and neutrons
14.
Concept: Isotopes
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Context: Isotopes that exist in nature are different versions of an elements atom. For
example, the nitrogen atom can exist as either the N-14 or N-15 isotope, with the number
indicating the number of subatomic particles present in the isotope. The two isotopes of
nitrogen have different mass numbers, but the same atomic number.
Question: Which subatomic particle is responsible for the differences in mass number
between the two nitrogen isotopes?
15.
a)
The different number of electrons that orbit around the nucleus of the isotopes
b)
The different number of neutrons in the nucleus of the isotopes
c)
The different number of protons in the nucleus of the isotopes
d)
The different number of protons and neutrons in the nucleus of the isotopes
Concept: Arrangement of the periodic table
Context: The periodic table contains all of the known elements in the universe, with each
element having a different atomic number. The groups and periods within the periodic
table assist in understanding which elements contain similar properties.
Question: Which of the following correctly describes the periodic table?
a)
There are more periods than there are groups on the periodic table
b)
The periods are the horizontal rows of the periodic table, whereas the groups are the
vertical columns
c)
The periods are the vertical columns of the periodic table, whereas the groups are
the horizontal rows
d)
The periodic table contains only the most common elements that occur in nature, not
the rare ones
16.
Concept: Number of electrons within the electron shells
Context: The electrons that orbit around the outside of the nucleus within an atom are
grouped in electron shells. All of the electrons within a single electron shell have similar
energies.
Question: Which of the following is correct about the number of electrons within electron
shells?
a)
Each of the electron shells contains eight electrons
b)
Each of the electron shells contains two electrons
c)
The number of electrons in an electron shell is not fixed and constantly changes
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d)
Each of the different electron shells is capable of holding a different number of
electrons
17.
Concept: Position of the electron shells within an atom
Context: The helium atom contains two protons, two neutrons and two electrons. The two
electrons within the helium atom that orbit around the nucleus are located in the same
electron shell.
Question: Which of the following accurately describes the location of helium atom’s
electron shell?
a)
It is the electron shell that is furthest away from the nucleus
b)
It is an electron shell that is between the electron shells that are furthest and closest
to the nucleus
18.
c)
It is the electron shell that is closest to the nucleus
d)
The electron shell may exist in any of the seven available positions
Concept: Properties of electron shells
Context: The electrons that orbit around the outside of the nucleus within an atom are
grouped in electron shells. All of the electrons within a single electron shell have similar
energies.
Question: Which of the following is correct about electron shells?
a)
The electron shells closest to the nucleus have lower energy electrons than the
shells further away from the nucleus
b)
The electron shells further away from the nucleus are filled with electrons before the
shells that are closer to the nucleus
c)
Each of the electron shells can hold eight electrons
d)
The electrons located within the different electron shells all have similar energies
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