WorksheetsTrend in group I, VII and VIII
Total questions: 59
Worksheet time: 44mins
Group 1 elements are also known as
Noble gas
Halogen
Alkaline earth metals
Alkali metals
Arrange the elements in group 1 from the top to bottom of the group.
Li, Na, K, Fr, Rb, Cs
Li, Na, K, Rb, Fr, Cs
Li, Na, K, Rb, Cs, Fr
Fr, Cs, Rb, K, Na, Li
What gas is given off when group 1 elements reacts with water?
Hydrogen
Oxygen
Carbon dioxide
Helium
How many electrons are in the outer shell of group 1 elements?
0
1
2
3
Which of the following properties would most likely belong to an element in Group I?
Low density, low melting point, react vigorously with water
Low density, high melting point, mild reaction with water
High density, low melting point, react vigorously with water
High density, high melting point, mild reaction with water
Which of the following is true about Group VII elements?
Chlorine is a greenish-yellow liquid.
Bromine is a reddish brown liquid.
Iodine forms covalent compound that is soluble in water.
Astatine forms ionic compound that is soluble in organic solvent.
Astatine is below iodine in the Periodic Table. Which of the following best describes astatine at room temperature?
black solid
black liquid
reddish-brown solid
reddish-brown liquid
Select all the correct statements.
Sodium exploded into purple flame in water.
Potassium reacts explosively in water.
Sodium reacts less vigorously in water.
Reaction of potassium changes the water (with Universal Indicator) from green to blue.
The reactivity of halogens decreases moving down the group. Which statement explains this observation?
Decreasing distance between the nucleus and outer shell makes it easier for the atom to attract electrons
Increasing distance between the nucleus and outer shell makes it easier for the atom to attract electrons
Decreasing distance between the nucleus and outer shell makes it harder for the atom to attract electrons
Increasing distance between the nucleus and outer shell makes it harder for the atom to attract electrons.
The reactivity of the alkali metals increases moving down the group. Which statement explains this observation?
Decreasing distance between the nucleus and outer shell makes it easier for the metals to lose their valence electrons
Increasing distance between the nucleus and outer shell makes it harder for the metals to lose their valence electrons
Increasing distance between the nucleus and outer shell makes it easier for the metals to lose their valence electrons
Decreasing distance between the nucleus and outer shell makes it easier for the metals to lose their valence electrons
Which row describes the properties of fluorine?
A
B
C
D
Astatine is a radioactive Group VII element which is extremely unstable, making it difficult to study. The physical and chemical properties of astatine can only be estimated.
Which row most likely describes the properties of astatine?
A
B
C
D
Put the Group I elements, Cs, Li, K, Rb and Na in their order of reactivity with water.
________, ________, ________, ________, ________
(a)
The table gives information about some of the elements in Group VII of the periodic table.
What is the color of chlorine at room temperature?
black
blue
green
orange
Reactivity of halogen decreases going down the group because
The 8th electron difficult to attract by nucleus
Atomic size decreases down the group
Electrons are closer to the nucleus
Screening effect decreases
Which of the following is a solid at room temperature?
Fluorine
Chlorine
Bromine
Iodine
Dimitri Mendeleev's classification of the elements in the Periodic Table was a great improvement compared to John Newlands because
i He left gaps to be allocated for undiscovered elements
ii He predicted the properties of the undiscovered elements
iii He classified the elements into triads
iv He arranged the elements in ascending order of their proton numbers.
i and ii are correct only
i and iv are correct only
ii and iii are correct only
iii and iv are correct only
Diagram above shows the electron arrangements of atom D and atom E. Which of the following statements is true about elements D and E?
The boiling point of Element E is lower than Element D
Both the elements, D and E, can conduct electricity
Both the elements, D and E, are very soluble in water
Both the elements, D and E, cannot combine with other elements to form compounds
Table shows the relative atomic masses of two elements, H and J. Element H and J are located in Group 1 of the Periodic Table. Which statements is true about elements H and J?
H is more electropositive than J
The melting point of J is higher than that of H
The number of valence electrons in atom J is more than that of atom H
J reacts with cold water more vigorously than H
Which statements is correct about the alkali metals when going down Group 1 in the Periodic Table?
The reactivity decreases
Strength of nucleus to attract an electron into the valence shell increases
Electropositivity decreases
The single valence electron becomes more weakly pulled by the nucleus
Atom T has a proton number of 11 and a nucleon number of 23. Which of the following is true about element T?
It does not conduct electricity
If forms an oxide with the formula TO
It is a hard black solid
It reacts with water to form an alkaline solution
Group 1 elements only have ______ valence electron.
1
4
6
7
What are the elements in group 18 (the far right) of the periodic table called?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
The symbol for helium is
H
He
Hl
Hm
The symbol for argon is
Ar
Ag
An
A
The Alkali Metals = Group 1
The Halogens = Group 17
The Noble Gases = Group 18
The Alkaline Earth Metals = Group 2
Argon (proton number =18) is inert to any chemical reaction because
It is light
it is located in Group 18
it has achieved stable duplet electron arrangement
it has achieved stable octet electron arrangement
What is the factor that determines the chemical properties of an element?
The number of electron shells
The number of electrons in the innermost shell
The number of electrons in the outermost shell
The number of neutrons in the nucleus
Why does the reactivity of group 1 elements increases down the group?
It becomes more reactive
It becomes easier to accept an electron
It becomes easier to lose an electron
It becomes less reactive
Select two correct answers. Going the down Group 1,
Reactivity increases
Atomic size decreases
The ability to lose only one valence electron increases
Density decreases
The melting and boiling points of the Group 1 elements ______________ as you go down the group.
decrease
increase
do not change
What happens to the density of Group 1 elements as you move down the group?
Increases
Decreases
Stays the same
Increases then decreases
Decreases then increases
Group 1 elements consist of: lithium, potassium, caesium, rubidium, and francium. Which element have we missed out?
hydrogen
sulfur
manganese
sodium
How many electrons are in the outer shell of all elements in Group 1?
(a)
Group 17 has .... valence electron
1
7
11
17
Which of the following properties decreases going down the group VII?
Boiling point
Reactivity
Melting point
Atomic radius
To achieve stable electron octet arrangement (the same electron configuration as neon), chlorine atom will ...... electron
Donate 7
Donate 1
Accept 7
Accept 1
The following statements describe the characteristics of an element
- has an electron configuration 2.8.7
- a greenish-yellow gas at room temperature
- exists as a diatomic molecule
This element is probably
sodium
neon
bromine
chlorine
When descending Group 17 from fluorine to astatine,
I. the atomic size decreases
II. the melting and boiling points decrease
III. the density of the halogens increases
IV. their physical state changes from gas to liquid to solid
I and II
I and III
II and IV
III and IV
Which characteristics is correct about elements in Group 17 in the Periodic Table as going down the group?
The reactivity increases
The intensity of colour decreases
The tendency to accept an electron decreases
The physical state changes from liquid to gas
Reactivity of halogen decreases going down the group because
The 8th electron difficult to attract by nucleus
Atomic size decreases down the group
Electrons are closer to the nucleus
Screening effect decreases
What are the special name given to elements in Group 18? (Multiple choose)
Noble gases
Inert gases
Peace gases
Unreactive gases
As going down Group 18, the atomic size of the atom ______.
Increases
Decreases
Remain the same
Noble gases do not undergo chemical changes even though high heat energy is supplied. Which of the following best describe this statement?
Noble gases generally exist as solid in room conditions.
Noble gases have achieved a stable octet electron arrangement.
Noble gases have low boiling point.
The attractive forces between atoms is very strong.
Which of the following atomic structure belongs to Group 18?
As going down the group I, the elements become ____________, except for potassium?
More dense
Less dense
As going down the group I, the trends of elements in melting point are __________________.
Increasing
Decreasing
As going down the group I, the trends of elements in boiling point are __________________.
Increasing
Decreasing
As going down the group VII (17), the trends of elements in boiling and melting point are __________________.
Increasing
Decreasing
As going down the group VII (17), the trends of elements in density are __________________.
Increasing (changing from gas --> liquid ---> solid )
Increasing (changing from solid --> gas ---> liquid )
Decreasing (changing from gas --> liquid ---> solid )
Decreasing (changing from solid --> gas ---> liquid )
As going down the group VII (17), the trends of elements in color are __________________. (yellow --> green --> Red --> purple)
Darker
Paler
As going down the group VIII (or group 18), the trends of elements in boiling point are __________________.
increasing
decreasing
As going down the group VIII (or group 18), the trends of elements in melting point are __________________.
increasing
decreasing
As going down the group VIII (or group 18), the trends of elements in density are __________________.
increasing
decreasing
Group VIII (or group 18) have _______ valence electron (s).
7
1
8
Full-filled (complete)
