Periodic classification questions | form two Chemistry

State the trend in reactivity of group I elements in the Periodic Table and give
reasons for it.

Answer / Solution

UNSOLVED

Use the knowledge of periodic Table to complete Table 1.

Answer / Solution

UNSOLVED

Study the following part of the periodic table and List down the names of all the missing elements.

Answer / Solution

UNSOLVED

Three elements, X, Y and Z, are in the same period of the periodic table. The oxide of X is amphoteric, the oxide of Y is basic and the oxide of Z is acidic. Which of the following shows the elements arranged in order of increasing atomic number?

1. X, Y, Z 

2. Y, Z, Y 
3. Z, X, Y
4. Y, X, Z 
5. X, Z, Y.

Answer / Solution

UNSOLVED

Study the following portion of the periodic table with some elements represented by letters and answer the questions that follow.

(i) State how electronegativity varies from A to C and from B to D
(ii) Write the electronic configurations of A, C^2-, D and B

Answer / Solution

UNSOLVED