Question

Please help!!! Best helper will be given a medal and fanned!!!

1. When an oxygen atom forms an ion, it gains two electrons. What is the electrical charge of the oxygen ion?

A. +1

B. -2

C. +2

D. -1

Answer 1

B

Answer 2

An oxygen atom has an outer shell of 6 electrons and it wants 8 of them. When it becomes an ion that adds 2 electrons and creates the charge of -2.
Protons= 6
Electrons=8(only the outer shell)
If you do 6-8 you get the charge of the ion.

Answer 3

An image shows copper wire coiled around an iron nail and connected to a battery to create an electromagnet.

Which will increase the strength of this electromagnet?



A.
adding another battery to the circuit

B.
using a larger switch

C.
using a battery with lower voltage

D.
using a larger nail

Answer 4

@4everaddicted2anime

Answer 5

I think its A

Answer 6

I think it is A too. That is the only one that makes any sense to me