Two non-metals form a covalent bond.
The answer is oxygen and oxygen.
The uniform microwave radiation remaining from the Big Bang
Electrons have electrical magnetic fields that require them to have energy that is too intense for quarks
Answer:
The number of electrons is 
(D) is correct option.
Explanation:
Given that,
Battery capacity = 750 mA-h
Time t= 8 hours
Time t'=3 hours
We need to calculate the battery capacity


We need to calculate the number of electrons in 1 C Li
Using formula for number of electron



We need to calculate the number of electron in 2700 C

The total number of electrons battery can deliver in 8 hours

We need to calculate the number of electron in 3 hours
Using formula of number of electrons

Put the value into the formula


Hence, The number of electrons is 