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Topic 2.4
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1
Which of the following subatomic particles are located in the nucleus of an atom?
A)electron
B)neutron, and proton
C)electron, and proton
D)electron, neutron, and proton
2
An electron is…
A)a negatively charged particle that is located outside the nucleus.
B)a positively charged particle that is located outside the nucleus.
C)a positively charged particle located in the centre of the nucleus.
D)an uncharged particle that is located in the nucleus.
3
Neutrons are located…
A)in the nucleus and do not have a charge.
B)in the nucleus and have a positive charge.
C)outside the nucleus and do not have a charge.
D)outside the nucleus and have a negative charge.
4
The atomic number is…
A)the number of electrons surrounding the nucleus of an atom.
B)the number of neutrons in the nucleus of an atom.
C)the number of protons in the nucleus of an atom.
D)the number of protons surrounding the nucleus of an atom.
5
What is the maximum number of electrons that can be found in the second energy level of an atom?
A)two
B)four
C)eight
D)sixteen
6
What do rows on the periodic table represent?
A)the number of protons in each energy level
B)the number of electrons in each energy level
C)the number of energy levels that contain electrons
D)the number of energy levels that do not contain electrons.
7
What is the name of a horizontal row in the periodic table?
A)column
B)period
C)group
D)family
8
The periodic table organizes the elements …
A)vertically, in order of their atomic number.
B)vertically, according to the frequency that they occur in nature.
C)horizontally, in order of their atomic number.
D)horizontally, according to their state of matter.
9
Which of the following is an example of a metal?
A)oxygen (O)
B)calcium (Ca)
C)boron (B)
D)helium (He)
10
Which of the following is an example of a metalloid?
A)silicon (Si)
B)potassium (K)
C)copper (Cu)
D)neon (Ne)
11
The most reactive non-metal is…
A)chlorine (Cl).
B)bromine (Br).
C)barium (Ba)
D)fluorine (F)





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