Answer: Scientific notation is used to express very large or very small numbers. ... Scientific notation numbers may be written in different forms. The number 6 x 109 could also be written as 6e +9. The + 9 indicates that the decimal point would be moved 9 places to the right to write the number in standard form
Explanation: i hope it is helpful
One way can be forming an ionic bond
Second way can be forming covalent bond
And finally, the third way could be forming Co-ordinate bond