Question

Two elements with symbol X(atomic number 11) and Y (atomic number 13 )are placed in the third period of the modern periodic table
1)which among the two has more metallic character
2) Calculate the valency of each element
3)Element Y is smaller than X in the term of atomic size is the statement to justify​

Answer 1

Answer:

Your answer is here:-

See in the attachment

Hope it helps you.

Answer 2

photosynthesis is the process by which plants make their own food