How to remember the first 20 elements easily This method was made by Sanjith Sagar, a student of Glendale Academy International, Hyderabad, India. He's currently in Grade 10. He considered the first 20 elements and made various combinations to form words. All you have to do is remember the word sequence and you'll automatically get the table.
وكان أول ما فعله جعل أزواج مختلفة من العناصر.
(وفيما يلي نموذج باختصارات العناصر. نتذكر هو بهذه الطريقة) H He Li Be B| C| N| O| F| Ne~ Na~ Mg] Al] Si^ P^ S^ Cl- Ar- K- Ca
(ال|,^,~,etc. تعني عناصر المجموعات المختلفة التي يتم تقسيمهاB,C,N,O,F are one group.)
Consider the first group. H,He,Li,Be. Remember as it is. It's a nice ring to it which helps. One advise is remember it as the Full forms. Hydrogen, Helium, Lithium and Beryllium. End with -ium Next group is B,C,N,O,F. All these are single letters. REMEMBER THEM LIKE A RUSSIAN NAME, BCNOF or remember it using the short forms because in this group all are alphabets not a combination like Be or Cl. Next group is Ne,Na. Okay try reading it together. Sounds like Nina(NeNa) right?. So that's how you remember it Next group is Mg,Al. Try reading this as well. Sounds like Migal(MgAl) right? Remember it this way Next group is Si,P,S. We can make a proper word out of this. Sips(Si,P,S). Next group is Cl,Ar,K. Make a word out of this. Clark(Cl,Ar,K). And finally. Remember Ca as it is
The first 20 elements is very much required to do good in chemistry.The order mentioned above is the ascending order of atomic number of elements
So it is: The ring, BCNOF, Nina(NeNa), Migal(Mg,Al), Sips(Si,P,S), Clark(Cl,Ar,K) and Ca
Elements 103-118 don't have the same atomic [weight] represented everywhere.
Elements with [atomic weights in brackets] are rounded from their actual atomic weights.
Metals, metalloids, and nonmetals have no one definition.