Worksheets4.4. Elements in Group 1 (b)
Total questions: 11
Worksheet time: 6mins
Which of the following diagrams represents the electron arrangement of an element of Group 1?
Which statement explains why the size of atoms of Group 1 elements increases when going down the group in the Periodic Table of Elements?
The number of protons increases.
The relative atomic mass increases.
The number of valence electrons increases.
The number of shells filled with electrons increases.
The diagram shows the method used to store an element. Which of the following explains why the method is used?
To avoid from reaction with sunlight
The element is toxic and dangerous
The element is reactive and volatile
To avoid from reaction with oxygen and water in the air
Element Y is below potassium in the same group in the Periodic Table. Determine the formula of the product and the reactivity of Y with chlorine compared to the reaction of potassium with chlorine.
(a)
Table shows the proton number of elements P and Q. Which of the following statements are true of the elements in the table?
Q is more reactive than P
The atomic size of Q is bigger than P
Both elements P and Q can conduct electricity
P and Q are in the same group in the Periodic Table of Elements.
Element Z is located in the same group as potassium in the Peridic Table of Elements. Z is not the actual symbol of the elemnt.
reacts with water to produce an alkaline solution.
reacts with oxygen to produce a black solid.
reacts with chlorine gas to produce a white solid.
reacts with sodium hydroxide solution to produce an acidic solution.
Diagram shows the observation of a reaction when a piece of metal X and metal Y of the same size are put into a beaker containing cold water. Which of the following explains the observation?
Metal Y is harder than Metal X
Metal Y is denser than metal X
The atom of metal Y contains more protons than the atom of metal X.
The atom of metal Y releases electron more easily than the atom of metal X.
Which chemical equation represents the reaction between sodium metal and oxygen gas?
Na + O2 → NaO2
Na + O2 →Na2O
2Na + O2 →Na2O
4Na + O2 →2Na2O
An oxide of element X dissolves in water to form a solution. Phenolphthalein indicator turns from colourless to pink when it is dropped into the solution. What is X?
Carbon
Sulphur
Sodium
Copper
Diagram shows the apparatus set-up to study the reactivity of Group 1 elements of the Periodic Table of elementts in reaction with oxygen.
Table shows the observations for each reaction.
Which of the following is the correct descending order of reactivity of these elements with oxygen?
X, Y, Z
X, Z, Y
Y, Z, X
Z, Y, X
Diagram shows a graph of reactivity of elements against the proton number of elements X, Y and Z from the same group. Which of the following is correct about the elements?
react with water to form acidic solution
react with sulphuric acid to form white precipitate
react in chlorine gas to form white solid
react with sodium hydroxide solution to form sodium halide
