I am probably wrong but I would think 900. I wouldn’t submit that without somebody backing me up though.
Question 4: C
question 5: D
Answer:
ummm what is that give me more detail please
Answer:
Density
Explanation:
Density is a measure of how much mass is contained in a given volume
To calculate this, the first step is to determine the number of protons in each atom of the ion. You can use their atomic number to find the number of protons. If the number protons and electrons are equal there is no charge, so the next step is to determine how many electrons to add or remove to the number of protons.