Question

Five elements with respective atomic numbers are given: U=3, V=11, W=12, X=9, Y=17, Z=18.
Which two elements will belong to Group 1?​

Answer 1

Answer:

U and V

( U resembles Lithium and V resembles Sodium)

Answer 2

Answer:

U resembles Lithium which has atomic number 3

V resembles sodium which has atomic number 11

Group 1A (or IA) of the periodic table are the alkali metals:

hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

pneumonic for group 1 elements is

हेलिना की रब से फिर्याद.

so the answer is U and W