B.
And maybe put your question in the English/Literature tag next time lol
Answer:
An Element is a substance made up of only one type of atom as like gold, copper, oxygen, etc.
Copper sulphate with molecular formula 
, the elements are copper, sulphur and oxygen. It is formed by combination of 
cation and 
anion.
Copper sulphide with molecular formula 
, the elements are copper and sulphur. It is formed by combination of cation and 
anion.
The atomic number of an element tells you the number of protons within said element.
Answer:
Ni ➡️Nickel
Explanation:
The element that is most
likely to be both conductive AND magnetic in nature is "Nickel".
Nickel is a popular magnetic metal and it is known to be ferromagnetic. It's valuable in alloys and used in the production of stainless steel. The element belongs to the transition metals - hard, malleable and ductile. It has high electrical and thermal conductivity.
The element finds usefulness in batteries, phones, kitchen tools, jewellery, etc.
