Question

what all elements do i have to memorize for boards in chemistry chapter periodic?

Answer 1

Elements from 1 to 30 atomic number.

And periodic table....

Answer 2

Answer:

elements 1 to 20 if u want more u can study till 30

Explanation:

Happy Henry Lives Beside Boron Cottage, Near Our Friend Nelly Nancy MgAllen. Silly PHappy. – H Hydrogen

Henry – He Helium

Lives – Li Lithium

Beside – Be Beryllium

Born – B Boron

Cottage – C Carbon

Near – N Nitrogen

Our – O Oxygen

Friend – F Fluorine.

Nelly – Ne Neon

Nancy – Na Sodium

Mg – Mg Magnesium

Allen – Al Aluminum

Silly – Si Silicon

Patrick – P Phosphorus

Stays – S Sulphur

Close – Cl Chlorine

Arthur – Ar Argon

Kisses – K Potassium

Carrie – Ca Calciumatrick Stays Close. Arthur Kisses Carrie.