WorksheetsPeriodic Table
Total questions: 13
Worksheet time: 50mins
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
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
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
Element R forms an ion, R- with an electron arrangement of 2.8.8. The chemical properties of element R are similar to another element with a proton number of?
9
12
16
19
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
Element G, L and J are located in Group 17 of the Periodic Table. Element J is more electronegative than element G. The reaction of red-hot iron wool with gas L is more vigorous than the reaction of red-hot iron wool with gas J. The reactivity of these three elements in ascending order is ?
G, J, L
L, J, G
L, G, J
J, G, L
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 electron arrangement of atoms X and atom Y. Which of the following statements is true about element X and Y?
Element Y is more electronegative than element X
Both the elements, X and Y, are good electrical conductors
An atom of X can accept an electron more readily than an atom of Y
An aqueous solution of element X is acidic but an aqueous solution of element Y is alkaline
Two chemical properties of element W are shown above.
Based on the information given which of the following is another property of element W?
W reacts with water to liberate hydrogen gas
W is very electropositive
W reacts with sodium hydroxide solution to form salts with the formulae NaW and NaOW
W is a good electrical conductor
Why do melting point (down the group) decreases in group 1 but increases in group 17?
Compare the reactivity of Group 1 and Group 17 element. Explain why.
What is electronegativity? Compare group 1 and group 17 elctronegativity
i. down the group
ii. over the period
