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WorksheetsThe Periodic Table of Elements, Group 18 and Group 1 element
Total questions: 10
Worksheet time: 10mins
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
The following shows some information about element Q.
1) Relative atomic mass is 9
2) has 5 neutrons
Which statements is correct about element Q?
Element Q is placed in Group 15 of the Periodic Table
Atom Q has 9 protons
Element Q has 2 valence electrons
Atom Q has three shells occupied with electrons
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
Diagram shows the symbol of neon. Which statements is not true about neon?
Neon exist as a monatomic elements
Neon has low melting and boiling point
Neon has a low density
Neon reacts with bromine to form a covalent compound
A construction worker wants to weld two pieces of iron together during the construction of a tall building. Which of the following elements, J, L, M or Q, is the most suitable to be used to provide an atmosphere which can prevent the hot iron from reacting with oxygen in the air during welding?
Which property of Group 18 elements increases when going down the Group in the Periodic Table?
Forces of attraction
Reactivity
Solubility in water
Electrical conductivity
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
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
The following shows some information about element M.
1) element M forms ions with the formula M+
2) An M+ ion has an electron arrangement of 2.8
Element M will?
reacts with red-hot iron to form a brown solid
displaces hydrogen gas from cold water
forms an acidic oxide
cannot conduct electricity
