Question

An atomic physicist determines that an atom is composed of 8 positively charged particles and has a mass of 15 amu. Which is the best conclusion that can be drawn? The atom has 7 neutrons and 8 protons. The atom has 7 electrons and 8 protons. The atom has 8 neutrons and 7 electrons. The atom has 8 electrons and 7 protons.

Answer 1

The atom has 7 neutrons and 8 protons.

(A on edge)

Step-by-step explanation:

To solve for neutrons you subtract the Atomic mass by the proton numbers. So the equation would be 15-8=7 and that is your neutron number. 8 is proton number(it says it in the question). Hope this helps! :)

Answer 2

Answer: The atom has 7 neutrons and 8 protons.

Explanation: On Edhenuity!!!!!!!!!