Answer:
is the isotopic notation of the atom
Explanation:
The isotope notation is:

<em>Where a is the mass number = Number of protons + Number of neutrons</em>
<em>b is atomic number = Number of protons</em>
The atomic number define the nature of the atom, the element with atomic number = 15 is phosphorus, P:

a = 15 protons + 16 neutrons = 31
b = 15
is the isotopic notation of the atom.
Answer:
all atoms must have 6 protons to be a carbon atom
Explanation:
brainliest?
Answer:
about 3
Explanation:
just did this for the points just being honiest
last one? don't take my word though
Explanation:
the suns heat is related to nuclear fusion
Answer:
in our solar system, the rocky planets are Mercury, Venus, Earth, and Mars
hope this helps :)
Explanation: