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Essential Chemistry for IGCSE - The Periodic Table (Section 2)

1
Which of the following noble gases is used in welding?
Answer
(C)
Argon
2
Which of the following is/are characteristic(s) of a chemical reaction between an alkali metal and water?
Answer
B
C
D
3
What happens to the melting and boiling points of the noble gases as you go down the group?
Answer
(A)
Increase
4
What is the formula for sodium hydroxide?
Answer
(B)
NaOH
5
What is the name of the compound formed when sodium reacts with chlorine?
Answer
(A)
Sodium chloride
6
What is the most common oxidation state for Group 1 elements?
Answer
(A)
+1
7
What is the name given to the positively charged particles in an atom?
Answer
(B)
Protons
8
What type of bonds do elements in group 1 form?
Answer
(C)
Ionic
9
What is a common use for argon?
Answer
(B)
Welding inert atmospheres
10
What is the number of valence electrons for elements in Group 1?
Answer
(A)
1
11
What are the elements in the middle of the periodic table known as?
Answer
(C)
Transition metals
12
What is the trend for the size (atomic radius) of atoms as you go down Group 1?
Answer
(A)
Increases
13
As you move across a period from left to right, what generally happens to the metallic character of the elements?
Answer
(B)
Decreases
14
What is a key characteristic of the elements in Group 17 (VII)?
Answer
(B)
They exist as diatomic molecules.
15
Which halogen is the most reactive?
Answer
(A)
Fluorine
16
Which of the following is/are true about the trends in the Periodic Table?
Answer
A
C
D
17
What are the elements in Group VIII called?
Answer
(C)
Noble gases
18
What is the name given to the elements that are good conductors of electricity and heat?
Answer
(C)
Metals
19
Which of the following is a property of a metallic element?
Answer
(C)
Shiny luster
20
Which of the following is true of elements within the same group?
Answer
A
B
21
What is the state of matter for all noble gases at room temperature?
Answer
(C)
Gas
22
What is the trend in the reactivity of halogens as you move down the group?
Answer
(B)
Decreases
23
What is the general trend in ionization energy across a period?
Answer
(A)
Increases
24
In the periodic table, elements are arranged in order of increasing what?
Answer
(C)
Atomic number
25
What is observed when chlorine reacts with potassium iodide solution?
Answer
(D)
All of the above.
26
What happens to the atomic radius as you move across a period from left to right?
Answer
(B)
Decreases
27
What happens to the reactivity of Group I metals as you move down the group?
Answer
(B)
Increases
28
What colour change is observed when chlorine water is added to a solution containing potassium iodide?
Answer
(A)
From colourless to yellow/brown
29
What type of bonds do the transition metals tend to form?
Answer
(C)
Metallic
30
Which halogen is a liquid at room temperature?
Answer
(C)
Bromine
31
What trend generally is observed in the atomic radius as you go down a group in the periodic table?
Answer
(B)
Increases
32
What is the main factor determining the chemical properties of an element?
Answer
(D)
Number of valence electrons
33
Which of the following is a property of a halogen?
Answer
(C)
They form negative ions.
34
Which of the following describes the reaction of an alkali metal with water?
Answer
(A)
A vigorous reaction producing hydrogen gas and a metal hydroxide.
35
What is the state of fluorine at room temperature?
Answer
(C)
Gas
36
Which of the following is true about group 1 metals reacting with water?
Answer
(A)
Reactivity increases down the group.
37
What are the elements that are found on the left side of the periodic table?
Answer
(C)
Metals
38
Which group of elements is also known as the alkali metals?
Answer
(A)
Group I
39
Which of the following statements is true about the reactivity of the alkali metals?
Answer
(A)
Reactivity increases down the group.
40
Which element will displace chlorine from a solution of sodium chloride?
Answer
(C)
Fluorine
41
What colour does chlorine appear to be?
Answer
(B)
Yellow-green
42
What is the name of the process in which an element is broken down into its individual atoms?
Answer
(D)
Atomization
43
Which group contains elements that are generally inert and do not readily form chemical bonds?
Answer
(C)
Group 8
44
What is a key property of elements in the same group?
Answer
(C)
Similar chemical properties
45
Which of the following statements are true regarding transition metals?
Answer
A
B
D
46
What is the general trend for melting and boiling points down Group I?
Answer
(B)
Decreases
47
Which of the following is a common use of transition metals?
Answer
(B)
Catalysts
48
What type of structure do the noble gases have?
Answer
(C)
Monatomic atoms
49
Which of the following is the product formed when sodium reacts with water?
Answer
(B)
Sodium hydroxide
50
Which of the following is a characteristic of transition metals?
Answer
(B)
They form colored compounds.