Please no fakes this is the last of my points please try really hard to figure out this problem. if you don't get it go to another person question then answer it please just dont say idk. im beggin you!!! :( You are making a measurement using meters and find that the number value is 10. What is the correct way to write this scientific measurement?
A. meters
B. 10
C. 10 meters
D. Meters 10

The answer is...C

Explanation:

10 meters... because you won't just say your answer is ten or neither can just put meter.

The correct way to write this scientific measurements is 10 meters

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.