16 neutrons are present in the most abundant isotope.
Explanation:
Phosphorus has 18 isotopes. The most common isotope has mass number (no. of protons 15+ no. of neutrons 16=) 31 .
The first choice is correct
Answer:
Smooth Muscle
Explanation:
In the digestive tract it's called the muscularis mucosa.
Answer:
I think D is right answer
Answer:
loam
i am not 100% sure but logically it's loam