Question

Match the atomic number 4, 6, 11, 15,and 18 with the following. (1) a solid non metal of valency 3 . (2) a gas belonging to zero group. (3)an element with 2 electron in valence shell (4) a non metal of valency 4 . (5) a metal with one electron in the third shell

Answer 1

Answer:

Explanation:

ATOMIC NO           OPTION

     4                          (3)

     6                          (4)

     11                          (5)

     15                         (1)

     18                         (2)

Answer 2

Lets match the atomic numbers with elements

Explanation:

Atmic number

Itis defined as number of protons in atom .

We are given with :

Atomic numbers ,electronic configurations and identity of element

• 4-2,2: an element with 2 electron in valence shell
• 6-2,4:a non metal of valency 4
• 11-2,8,1:a metal with one electron in the third shell
• 15-2.8,5: a solid non metal of valency 3
• 18-2,8,8: gas belonging to zero group