Science, asked by abhinavmohanmaot3ahc, 1 year ago

I have two question
1)Should we study full periodic table
If no need to study full then till how much atomic number i have to byheart
2)Should we study atomic radius of elements.Will questions come like Compare atomic size of elemets in a group with examples

Pls read Q 1 and 2 full and answer me
This i asked is for board exam 2019

Answers

Answered by ShashwatKaushik3

1) Atomic No. from 1 to 20

2) Questions will definitely come but no need to learn them. You will get if you know what happens to atomic size in a group or period

ShashwatKaushik3: Two elements will be given in question

ShashwatKaushik3: Then u have to compare in both

lucy78: like

lucy78: how many cells

ShashwatKaushik3: like element X with atomic No. 4 and Element Y with 16 . which has more atomic size

lucy78: by without name we have to guess

lucy78: up to 30 no we have to learn or whole table we have to learn

ShashwatKaushik3: Up-to 20

ShashwatKaushik3: Yup without name because atomic No. will be given

lucy78: oooohhhhhhh

Answered by lucy78

u have to learn up to about 30 elements I guess soo..

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