Which one of the following statements is not correct about the trends in the properties of the elements of a period on going from left to right? ans. The elements become less metallic There is an increase in the number of valence electrons The oxides become more acidic The atoms lose their electrons more easily

The statement that is not correct about the trends in the properties of the elements of a period on going from left to right is:

"The atoms lose their electrons more easily"

Explanation:

1. "The elements become less metallic" - This is correct. As we move from left to right across a period, the elements become less metallic and more nonmetallic in their properties.

2. "There is an increase in the number of valence electrons" - This is correct. As we move from left to right across a period, the number of valence electrons increases by one at each step.

3. "The oxides become more acidic" - This is correct. As we move from left to right across a period, the nature of the oxides changes from basic to acidic.

4. "The atoms lose their electrons more easily" - This is incorrect. As we move from left to right across a period, the atoms do not lose their electrons more easily. Instead, the atoms hold onto their electrons more tightly due to the increase in nuclear charge. This results in an increase in ionization energy, which is the energy required to remove an electron from an atom.