2ND Year
Atom and Bonding
Q1
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Student Name:
Teacher Name:
Class:
School:
1. Type your answer into the box.
2. SAVE the completed assessment as instructed by your teacher.
a) Atoms contain protons, neutrons and electrons.
A
B
C
Name the particles labelled in the diagram.
A:
B:
C:
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Atom and Bonding - Page 1 of 4
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Atom and Bonding
Q1
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Iron atoms
A tripod stand is made up of iron atoms. Iron is called an element. Why is iron called an element?
Name another element you know:
b) Explain the word isotope.
A
B
C
Protons:
Protons:
Protons:
Neutrons:
Neutrons:
Neutrons:
Electrons:
Electrons:
Electrons:
Which two atoms above are isotopes of each other? Tick the correct answer:
A and B
A and C
B and C
Explain your answer:
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Atom and Bonding - Page 2 of 4
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Atom and Bonding
Q1
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c) The following is the number of subatomic particles in oxygen.
16
0
8
Protons:
Neutrons:
Electrons:
Draw a simple Bohr diagram of an oxygen atom in the box below.
(This part of the question cannot be completed on-line. You can either print the page or answer it in your copybook.)
If you have an atom with 5 protons and 6 neutrons, how many electrons would you have add to
make the atom neutral.
Protons:
Neutrons:
Electrons:
Tick the correct answer:
6 electrons
5 electrons
11 electrons
Explain your answer:
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Atom and Bonding - Page 3 of 4
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Atom and Bonding
Q1
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d) What process changes a chlorine atom, Cl, into a chloride ion, Cl-? Tick the correct answer:
electron gain
electron loss
proton gain
proton loss
e) Magnesium is an element with 12 protons and 12 neutrons.
Which of the following is the mass number of magnesium? Tick the correct answer:
The mass number is 12
Explain your answer:
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The mass number is 0
The mass number is 24
Atom and Bonding - Page 4 of 4
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