Question

Is it is necessary to learn complete PERIODIC TABLE...

I am grade 10 CBSE BOARD

Answer 1

Answer:

Yes. It is necessary to memorise it because the if you remember these elements then from the trends you can easily find out their physical and chemical properties.

There are three easy ways to remember periodic table:

1. Always carry a printout or prepare flash cards of the periodic table so you can go through it in your free time.

2. Breakdown the periodic table into smaller sections and study each section separately.

3. Create your own Mnemonics.

Answer 2

Answer:

Nope it's not that compulsory

You just need to remember a single Group and Period which will help u in giving examples

And yes u need to memorise the first 20 elements arranged in increasing order of atomic no.