Atoms and Molecules long 4

Question 1

Give a note on the molecules of elements ?

Answer 1

The molecules of an element are constituted by the same type of atoms. Metals and some other elements, such as carbon, do not have a simple structure but consist of many atoms bonded together.

Question 2

What is an ion ?

Answer 2

Compounds composed of metals and non-metals contain charged species. The charged species are known as ions. Ions may consist of a single charged atom or a group of atoms that have a net charge on them. An ion can be negatively or positively charged

Question 3

What is valency ?

Answer 3

The combining power of an element is known as its valency.