You can search that up online it’s not that hard but good luck !!
Answer:
an electron in the outer energy level of an atom
Answer:
the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances
Explanation:
Answer:
the mass number of the atom or ion is 6