Question

state the modern periodic law
Answer: 1) the modern periodic table contains seven horizontal raws called the periodic.
2) similarly the eighteen vertical columns in this table are the groups -1 to 18
3) the three traditional types of elements are clearly shown in the modern periodic table with the help of the zig-zag line.​

Answer 1

Explanation:

U have already written the correct answer.

Answer 2

Answer:

Case Study Based – II (Questions from 15-18) Mr. Mohanlal purchased a land which is in the shape of a quadrilateral. Its four corner points are given in the graph.

15. The distance between point B and point C is *

1 point

(A) 10 units

(B) 8 units

(C) 6 units

(D) 7 units