An atom that has 13 protons and 15 neutrons is element
10.81
+3 12.011
4 14.0067
3 15.9994
2 18.9984
20.180
B C
CN
O
F
Ne
8
9
5
2-3
26.98154
16
2-4
131 28.0855
10
2-8
139.948
-4 30.97370
332006
236.433
0
AL
Si P S CI
17
Ar
13
2-8-3
14
2-84
15
2-8-5
16
28.6
18
2-8-8
SI
AI