Question

Do we have to learn all the elements of the modern periodic table for class 10 board exams?​

Answer 1

Answer

no we have to learn only first 20elements for class 10

Answer 2

Answer:

Here's the answer,

Explanation:

1) My dear friend we are not suppose to learn all the elements of modern periodic table but we just have to remember their sumbols and Most important their Atomic numbers..

2) In the examination there might be questions on symbols of elements.

3) We need to know which element has the smallest size i.e HELIUM (He).

4) The atom having the smallest atomic mass?

i.e Hydrogen (H).

I HOPE you may have understood.

THANK-YOU.