Two elements X and Y have atomic number 6 and 17 respectively. To which period and group do these belong?

Two elements X and Y have atomic numbers 12 and 16 respectively. Write the electronic configuration for these elements. To which period of the modern perioidic table to these two elements belong? What type of bond will be formed between them and why?

An element have atomic number 12. write its electronic configuration, period & group to which it belongs.

Write down the electronic configuration of elements with atomic numbers 2,14,17,19 indicate the group of the periodic tabe to which they belong?