If consumers pay $15 for an apple pie from lake huron pie company and the cost “from field to table” of the pie is $10, which of the following identifies the value of the pie? a. $5 b. $10 c. $15 d. $25 and i guess u could call this mathmatics too

the awnser is d bro\

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.