Answer:
bond angles of 120 degrees.
Answer:
Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.
Explanation:
Expected to deal with what? Fires?
33 - 15 = 18
This element is P-33