Chemistry Questions Part 1


Question 1

 Does the shape of a molecule have any effect on its physical properties? Support your answer with an example from daily life and explain how the shape of the molecule affects its physical properties.

Question 2

Complete the electronic configuration of the following:

  1. Fluorine (Atomic Number: 9): 1s2 2s2 __
  2. Potassium (Atomic Number: 19): 1s2 2s2 2p6 ___ ____ ___

Question 3

Which of the following elements have an equal number of valence electrons?

  1. Na (Atomic Number: 11)
  2. O (Atomic Number: 8)
  3. K (Atomic Number: 19)

Question 4

Write the number of valence electrons and valency of aluminium (Atomic Number: 13).

Question 5

The electronic configuration of the atoms of three elements X, Y, and Z is given below. Which of these elements are metals?

a: 1s2 2s1

b: 1s2 2s2 2p5

c: 1s2 2s2 2p6 3s2

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