Find the number of p-block elements from the following atomic numbers given below. `{:(83,79,42,64,37,54,34):}`

The number of elements among the following atomic numbers that are p block elements is ______. 83,79,42,64,37,54,34

To which blocks do the elements with following atomic number belong ? 7,13,25,42

Find the total number of 6^(th) period elements from the given atomic numbers? 81,63,50,54,48,86

Find the total number of 6^(th) period elements from the given atomic numbers? 81,63,80,50,54,48,86

The total number of p-bock elements among the given atomic numbers 50, 80, 42, 64, 86, 32 is

Find the LCM of the numbers given below : 42, 63