__ is the second most abundant element in Earth’s crust. It is found in ___, and ___; and in _ which is used to make pottery.

silicon is the second most abundant element in Earth’s crust. It is found in the sun and stars; and in clay which is used to make pottery.

Explanation:

when it gains or loses electrons

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.