Chemistry
What are groups in a periodic table. State the property trends in general of elements on moving down in a group of the periodic table. State the characteristics which remain similar on moving down in a group of the periodic table.
Answer
Eighteen vertical columns in the periodic table are called groups.
Trends on moving down in a group of the periodic table :
- Number of shells — increases by one
- Metallic character increases
- Electronegativity decrease down a group
- Valence electrons — remains same.
- Chemical properties — remain same [or vary gradually]
Related Questions
Name the elements in the correct order of their increasing atomic numbers present in the first, second and third short periods of the periodic table.
State which of the elements are – (a) metallic (b) non-metallic (c) noble gases in each of the periods 2 and 3.State the property trends in general of elements on moving from left to right in a period of the periodic table.
Write short notes on the following types of elements –
alkali metals
Write short notes on the following types of elements –
alkaline earth metals