Answer:
s --- the round single circle
p --- the two lobes
d --- the four lobes
f --- complex shape
Peridodic table is rlly confusing
The answer is a, alpha radiation
Answer:
20 neutrons
Explanation:
neutrons = mass number - atomic number
mass number = 39, atomic number = 19
neutrons = 39 - 19 = 20
Answer:
B
Explanation:
That electron is found in the 3d orbital.
ml=-2,-1,0,1,2
n=3
l=2
ml=0
ms=-1/2
Since it must be of opposite spin according to Pauli exclusion principle.