Question

An element of atomic no. 11 combines with elements of atomic no. 17 which bond is formed

Answer 1

Ionic bond is formed.

$explantion \:$

The element of atomic number 11 has 1 electron in the valence shell and the element 17 has 7 electron in the valence shell , this element requires one electron to attain stable configuration to the nearest noble gas and also it is easy for atomic no 11 to lose one electron.

What is Ionic or Electrovalent Bond ?

It is type of bond formed due to transfer of electrons between a metal and a non-metal . e.g - NaCl , CaO