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Essential Chemistry for IGCSE - The Periodic Table (Section 3)

1
What is the general trend for the melting and boiling points down Group VII (halogens)?
Answer
(A)
Increases
2
Which element is the most reactive in the alkali metals?
Answer
(D)
Francium
3
What does 'monatomic' mean in the context of the noble gases?
Answer
(A)
They exist as single atoms.
4
Which of the following is NOT a property of transition metals?
Answer
(C)
They readily lose electrons to form positive ions.
5
Which of the following correctly describes the reactivity trend for halogens?
Answer
(A)
Fluorine is most reactive; reactivity decreases down the group.
6
Which of the following are properties of noble gases?
Answer
B
C
7
Which of the following statements best describes the atomic number?
Answer
(B)
The number of protons in an atom.
8
Which of the following properties are expected to decrease down Group I?
Answer
(B)
Melting point
9
Which element is the most reactive in Group VII?
Answer
(A)
Fluorine
10
What are the key properties that are observed in the halogens?
Answer
A
B
D
11
What happens to the density of noble gases as you go down the group?
Answer
(B)
Increases
12
Which halogen is a solid at room temperature?
Answer
(D)
Iodine
13
Which of the following is a characteristic of Group I metals reacting with water?
Answer
(C)
Formation of hydrogen gas
14
Which of these elements is an example of a halogen?
Answer
(B)
Chlorine
15
What is the trend for the reactivity of halogens down Group VII?
Answer
(B)
Decreases
16
What are some of the unique properties which are observed in transition elements?
Answer
A
C
D
17
Which of the following is the most electronegative element?
Answer
(A)
Fluorine
18
What is the state of iodine at room temperature?
Answer
(C)
Solid
19
Which gas is produced when Group I metals react with water?
Answer
(B)
Hydrogen
20
Which of the following elements is a halogen?
Answer
(C)
Fluorine
21
What is the general trend for the first ionization energy as you move across a period (from left to right)?
Answer
(A)
Increases
22
Which of the following is a characteristic of a displacement reaction involving halogens?
Answer
(A)
A more reactive halogen displaces a less reactive halogen.
23
Which element has the most outer shell electrons?
Answer
(D)
Group VIII
24
What is the name given to the elements that have properties intermediate between metals and nonmetals?
Answer
(B)
Metalloids
25
Which property of the alkali metals increases down the group?
Answer
(D)
Reactivity
26
What type of reaction occurs when a halogen displaces another halogen from a compound?
Answer
(D)
Displacement
27
What is one of the primary uses of the noble gases?
Answer
(B)
Lighting
28
Which elements are most likely to react with each other to form an ionic bond?
Answer
(C)
A metal and a nonmetal
29
What happens to the number of outer shell electrons as you move across a period?
Answer
(B)
Increases
30
Which property is NOT characteristic of the noble gases?
Answer
(D)
They readily form ionic bonds.
31
What is the definition of the term 'period' in the context of the periodic table?
Answer
(B)
A horizontal row of elements.
32
What type of bond is expected between a metal and a non-metal?
Answer
(A)
Ionic
33
What is the trend in boiling points for noble gases?
Answer
(A)
Increase down the group
34
What is one of the key characteristics of transition metals?
Answer
A
B
35
Which of the following are properties of the noble gases?
Answer
A
C
36
What causes the increase in reactivity of alkali metals as you go down Group 1?
Answer
(C)
Greater shielding effect and larger atomic radius
37
What is the first element in Group I?
Answer
(D)
Hydrogen
38
Which of these elements is most likely to form an ion with a -1 charge?
Answer
(B)
Chlorine
39
Which of the following is a property of the noble gases?
Answer
(C)
They are all gases at room temperature.
40
What type of bond is formed between atoms in a molecule of chlorine gas (Cl2)?
Answer
(B)
Covalent bond
41
What is the name of the product formed when chlorine reacts with sodium metal?
Answer
(A)
Sodium chloride
42
What are the key properties that are generally observed in the alkali metals?
Answer
A
B
C
43
Which of the following statements is true regarding the reaction of alkali metals with water?
Answer
(C)
The reaction produces a salt and hydrogen gas.
44
Which of the following properties decreases down Group 1 (the alkali metals)?
Answer
C
D