Answer:
The equation for percent composition is (mass of element/molecular mass) x 100.
please mark me as a brainlist
Answer:
the second one seems right :)
Explanation:
The subatomic particle involved in chemical bonding is the electron. Electrons are the smallest of all subatomic particles and orbit the nucleus in discrete energy levels called shells. Electrons are negatively charged and the nucleus is positively charged due to the protons.