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 .
I would say it supports the inside out model. because both planets are similar
Answer:it's C and D
Explanation:it showed the answer
The answer is D . Would you like me to explain ?
Answer:
1. specialized cells
2. extracellular protein fibers
3. a fluid known as ground substance
Explanation:
