How do to remember elements name down the group?

Answer 1

You really do not unless your daily work concerns the chemistry of different elements. It is never hard to find a periodic table of elements around a chemistry lab or office.

Answer 2

You can use memory aids such as mnemonics, acronyms, or visualization techniques to help remember the elements' names as you go down a group on the Periodic Table. Grouping elements with similar characteristics together can also make it easier to remember their names and properties. Practice and repetition are essential for reinforcing your memory of the elements' names in a particular group.