Question

Help me please align="absmiddle" class="latex-formula">
THanks in advance ~​

Answer 1

#15

What elements forms electron rich hydride?

• Electron rich hydride are formed only when the elements from group 15-17 combine together to form compounds...

#16

Formula of Calgon is

• $Na_6O_18P_6$

Answer 2

#15

Electron rich means having more than 8 electrons in octet.The groups which produce them are

• Nitrogen family(Group-15)
• Oxygen family (Group-16)
• Halogen family(Group-17)

#16

Calgon stands for

$\\ \rm\rightarrowtail Na_6O_{18}P_6$