5 is 2 I’m not sure about 4 though....
Answer: The two main types of chemical bonds are ionic and covalent bonds. An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms. The only pure covalent bonds occur between identical atoms.Jan 23, 2020
Explanation: Hope this helped!!!!
The answer is B
If one circuit fails, it is most likely that all the components in the circuit will fail.
It would be: 1s2, 2s2, 2p4
