Answer:
Electrons
Explanation:
Electrons from the outershell so both of the atoms have a stable outer shell
Answer:
this is because Steel is more difficult to magnetise and demagnetise but an iron core makes a temporary electromagnet because its lose its magnetism when the switch is open and and steel core is used to make a permanent electromagnet
I believe the answer is D) reactivity. Hope this helps. (ノ◕ヮ◕)ノ*:・゚✧