Advertisements
Advertisements
Question
Give a reason why elements need to be properly classified.
Solution
Reason of classification of elements:
- It makes the study of elements in an organized manner.
- To help and correlate the properties of elements with the fundamental properties of different states of matter.
- To help to define the relationship of one element with others.
APPEARS IN
RELATED QUESTIONS
State whether the following statement is true of false:
The elements in a group have consecutive atomic numbers.
The element X forms a compound X2Y. Suggest an element that Y might be and give reasons for your choice.
The elements Li, Na and K, each having one valence electron, are in period 2, 3 and 4 respectively of modern periodic table.
(i) In which group of the periodic table should they be ?
(ii) Which one of them is least reactive ?
(iii) Which one of them has the largest atomic radius ? Give reason in justify your answer in each case.
Answer the following question.
Write the name, symbol, and electronic configuration of an element X whose atomic number is 11.
Example for liquid metal is ______.
Identify the bond between H and F in the HF molecules.
Which one of the following statements is not correct about the trends in the properties of the elements of a group on going down in a group?
What type of oxide would Eka– aluminium form?
Relate the names of the following scientists with the statements given below.
Arranged elements in a group of seven with increasing atomic masses and eighth elements with similar properties kept below the first like eight note in an act of music.
Relate the names of the following scientists with the statements given below.
Arranged elements in the increasing order of atomic mass.
