Question

Read the following lines written about the modern periodic table and fill in the blanks:
I am the Modern Periodic table, where elements are arranged on the basis of …………………….. .I have ……………….. Horizontal rows called ………………… and ………………….. Vertical columns are called …………………… My firs period is very short with ……………… elements and 2 and 3 periods contain …………….. Elements. 4 and 5 has ……………………… elements. 6 period has …………………… elements but 7 period is …………………… . With space for more elements. 17 group is of ……………….. 18 is of ……………. . Atomic size of my elements ……………………….. Across the period but ………………………. Down the group same as the metallic character but the no metallic character ………………… to that number of valence electron …………………… across the period so varies the value but valiancy of the elements is ……………… in a group all the properties of elements are the Periodic functions of ……………………..​

Answer 1

Answer:

(a) atomic number (b)periods (c) alkali metals (d) halogens (e) noble gases (f) eight