Question

how to learn the first 20 elements of periodic table with their atomic mass.

plzzzzzzz tell any simple trick.

Answer 1

leatn it by song...
hi he libebbcmofne namgal sipsclar kca scti vcrmn fe co nicu zn ..

Answer 2

$<B><u><center>Hii Mate!!</center></u></b> <Br> you can memorize the order of the elements. Hi! - H He - He Lies - Li Because - Be Boys - B Can - C Not - N Operate - O Fireplaces - F New - Ne Nation - Na Might - Mg Also - Al Sign - Si Peace - P Security - S Clause - Cl A - Ar King - K Can - Ca The atomic mass is double the atomic number of an element. But it is not applicable for all the elements in the periodic table. The atomic masses of elements like He, Li, C, N, O, Ne, Si, S, Cl, Ca are double the atomic number. The atomic masses of elements like Be, B, F, Na, Mg, Al, P, Ar and K are not double the atomic number. For these elements just double the atomic number and add 1. <center><font color = silcer> Hope Might Helped You </center></font> <marquee => Plz Mark As Brainliest </marquee>$