Question

why this orrangement of elements
is similar to the above period of
modem periodic table.​

Answer 1

Shravani I like u here is ur ans:

Answer:

1)Li>Be>B>C>N>O

2)2nd period

3)here the elements are arranged in increasing of atomic number

4)Li is the biggest atomic oxygen is smallest atom

5)atomic radius decrease due to increase in effective nuclear change.