The atomic numbers of three elements X, Y and Z are 3,11 and 17, respectively' State giving reason which two elements will show similar chemical properties.
The two elements X and Y will show same chemical properties because they have same number of valence electrons in group. They form positively charged ions by losing one electron
Position of P Group-2
Because it has 2 valence electrons/ 2, S, 8, 2
Period-4
Because it has 4 shells/2,8,8,2
Position of Q Croup-17
Because it has 7 valence electrons/ 2, 8, 7
Period-3
Because it has 3 shells/...
Electronic configuration of element X, atomic number 12=2;8;2
Electronic configuration of element 'Y' atomic number 16=2,8,6
Both have three shells, so they belong to period 3.
They will form an ionic bond as x...
(i) Valence electrons,in 'D'. = 5 and Valency of 'D' =3.
(ii) 'A' will have largest atomic radii because atomic radius decreases across a period from left to right.
(iii) 'A' will form the most basic...
(i) The valency of Q is 3 as its valence shell has three electrons in it.
(ii) Elements P and Q are metals as they have 2 electrons in their valence...
